Patent Publication Number: US-6701655-B2

Title: Gun barrel safety lock with hand ratcheting wrench

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to the art of gun or firearm safety. It finds particular application in conjunction with barrel locks or plugs, and will be described with particular reference thereto. However, it is to be appreciated that the present invention is also amenable to other like applications. 
     Firearm safety is a concern for most gun owners. In general, gun owners desire a way to secure their firearms from unauthorized use and/or accidental discharge. Accordingly, devices have been developed to achieve this goal. However, many of the prior art devices suffer from various drawbacks and/or limitations. 
     For example, trigger locks have been developed which when properly installed on a gun prevent an unauthorized user from squeezing the gun&#39;s trigger. While these trigger locks may prevent a gun&#39;s firing mechanism from being intentionally activated, trigger locks generally do not prevent a gun from being loaded. Accordingly, a live round can still be positioned in the firing chamber and a sudden jarring of the gun and/or faulty ammunition can potentially result in the accidental discharge of the weapon. 
     Another safety device for securing firearms is the so called barrel plug which is designed to wedge in and/or otherwise obstruct the gun&#39;s barrel. The previously developed barrel plugs also have drawbacks and/or limitation. Many of the prior art barrel plugs cannot easily and quickly be installed and removed. Others are not sufficiently tamper resistant and/or secure. That is to say, the security of some prior art barrel plugs can be frustrated with relative ease by an unauthorized user, e.g., pulling or pushing or otherwise removing the plug from the barrel. Furthermore, prior art barrel plugs tend to be of limited use insomuch as each only fits one preset caliber or bore size. 
     While obstructing the barrel, often barrel plugs do not prevent loading of the firearm. This is particularly hazardous when the barrel plug is completely hidden within the barrel. For example, a unsuspecting user, not knowing the barrel plug is installed and not seeing any external evidence of its installation, may load and attempt to fire the gun. Of course, the gun will potentially backfire or otherwise injure the user and/or damage either the firearm or the barrel plug or both. 
     The present invention contemplates a new and improved gun barrel safety lock with hand ratcheting wrench which overcomes the above-referenced problems and others. 
     SUMMARY OF THE INVENTION 
     In accordance with one aspect of the present invention, a gun safety device is provided. It includes a barrel plug assembly which is installed in a barrel of a gun. The barrel plug assembly has an expansion tube, a pair of compression members and a joining member. The expansion tube applies a force radially outward when compressed longitudinally. The pair of compression members are arranged at opposite ends of the expansion tube and are rotationally fixed with respect to one another. The joining member operatively links the compression members together and selectively draws them together to longitudinally compress the expansion tube therebetween. The gun safety device also includes a wrench assembly which is selectively attachable and mated to the barrel plug assembly. The wrench assembly operates the joining member. 
     In accordance with another aspect of the present invention, an apparatus for securing a gun against unauthorized use includes plug means installed in a barrel of the gun to be secured, and operating means for selectively effecting the installation and removal of the plug means. The operating means are selectively attachable and mated to the plug means. The plug means include: wedge means for selective wedging the plug means in the barrel; compression means for activating the wedge means when the compression means apply a compressive force to the wedge means; control means for controlling the compressive force applied to the wedge means by the compression means; and, sizing means for selectively varying a size of the plug means such that it will fit different barrel bore sizes. 
     In accordance with another aspect of the present invention, the apparatus for securing a gun against unauthorized uses further includes: blocking means for substantially blocking a firing chamber of the gun in which the apparatus is installed so that loading of the gun is guarded against, the blocking means being selectively attachable to the plug means. 
     In accordance with another aspect of the present invention, the apparatus for securing a gun against unauthorized uses further includes: warning means for providing a visual indicator that the plug means are installed in the barrel. 
     In accordance with another aspect of the present invention, the apparatus for securing a gun against unauthorized uses further includes: limiting means for limiting an amount of torque that the operating means can apply to the control means. 
     In accordance with another aspect of the present invention, the operating means of the apparatus for securing a gun against unauthorized uses further includes: locking means for selectively locking the operating means in a enabled configuration and a disabled configuration, the operating means being able to operate the control means when in the enabled configuration and being unable to operate the control means when in the disabled configuration. 
     In accordance with still another aspect of the present invention, a method of securing a gun against unauthorized use includes inserting a plug assembly into a barrel of the gun. The plug assembly has a resilient member positioned between two compression members joined by a threaded member having a keyed head which is recessed in one of the compression members. The method further includes attaching a wrench assembly to the plug assembly, and extending a socket from the wrench assembly so as to engage the socket with the keyed head recessed in one of the compression members. Holding the two compression members rotationally fixed, a series of alternating clockwise and counterclockwise strokes are applied to the wrench assembly to thereby rotate the threaded member in one direction and urge the two compression members toward one another such that they apply a compressive force to the resilient member therebetween. The resilient member responds to the compressive force by applying a radially outward force which wedges the plug assembly in the barrel. 
     One advantage of the present invention is that is secures a firearm against unauthorized use. 
     Another advantage of the present invention is the easy and speed with which the barrel plug assembly may be selectively installed and removed from the barrel of a firearm. 
     Another advantage of the present invention is that it is readily adaptable for use with any bore size or barrel configuration. 
     Another advantage of the present invention is that provides visual confirmation that the barrel plug assembly is installed. 
     Yet another advantage of the present invention is that guards against not only the discharge, but also the loading, of the secured firearm. 
     Still further advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description of the preferred embodiments. 
    
    
     BRIEF DESCRIPTION OF THE DRAWING(S) 
     The invention may take form in various components and arrangements of components, and/or in various steps and arrangements of steps. The drawings are only for purposes of illustrating preferred embodiments and are not to be construed as limiting the invention. 
     FIGS. 1A through 1D show side, top, bottom and perspective views, respectively, of an exemplary gun barrel safety lock with an attached hand ratcheting wrench in accordance with aspects of the present invention. 
     FIG. 2A shows an exploded side view (with internal features being represented by dashed line) of an exemplary barrel plug assembly in accordance with a preferred embodiment of the present invention and as also shown in FIGS. 1A-1D. 
     FIG. 2B shows an exploded perspective view of the barrel plug assembly of FIG.  2 A. 
     FIG. 3A shows an exploded perspective view (with internal features being represented by dashed line) of an exemplary hand ratcheting wrench assembly in accordance with a preferred embodiment of the present invention and as also shown in FIGS. 1A-1D. 
     FIGS. 3B and 3C show side views (with internal features being represented by dashed line) of the hand ratcheting wrench assembly of FIG. 3A, with an extraction rod locked in the retracted and extended positions, respectively. 
     FIG. 3D shows a perspective view of the hand ratcheting wrench assembly of FIG. 3A with the extraction rod locked in the extended position. 
     FIG. 4 shows an exploded perspective view of both the barrel plug and hand ratcheting wrench assemblies of FIGS. 2A and 3A. 
     FIGS. 5A through 5E show a back, a side, a front and two perspective views, respectively, of a revolver with a barrel plug assembly in accordance with aspects of the present invention installed in the barrel. 
     FIGS. 6A through 6E show the corresponding views, respectively, of FIGS. 5A through 5E with a wrench assembly attached to the barrel plug assembly in accordance with aspects of the present invention. 
     FIG. 7 shows a partially cut away side view corresponding to FIG.  5 B. 
     FIG. 8A is an exploded perspective view showing selected internal elements (including an extraction rod, and a slip clutch and ratchet assembly) of the hand ratcheting wrench assembly of FIG.  3 A. 
     FIG. 8B is an unexploded perspective view showing selected internal elements (including an extraction rod, and a slip clutch and ratchet assembly) of the hand ratcheting wrench assembly of FIG.  3 A. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S) 
     With reference to the FIGURES, in particular FIGS. 1A-1D and  4 , an exemplary gun barrel safety lock with hand ratcheting wrench in accordance with a preferred embodiment of the present invention includes a barrel plug assembly A (see also FIGS. 2A and 2B) and a selectively detachable hand ratcheting wrench assembly B (see also FIGS. 3A-D) which is used to selectively install and uninstall the barrel plug assembly A in the barrel of a firearm. The barrel plug assembly A is readily adaptable and may be installed in any firearm regardless of type (i.e., handgun, rifle, shotgun or otherwise), barrel length, the existence of a flash guard, caliber, gauge or bore diameter, number of barrels, or method of loading. With the plug assembly A installed, the barrel of the firearm is blocked and the firearm is therefore secured from unauthorized operation insomuch as the plug assembly cannot be removed without the corresponding hand ratcheting wrench assembly B. Additionally, an optional plug extension  24  which is part of the plug assembly A will prevent the firearm from having a round of ammunition loaded in the firing chamber, aligned with the barrel, or otherwise placed in a firing position. Moreover, in accordance with preferred embodiments, the barrel safety lock is very compact and rugged. 
     The barrel plug assembly A is installed in the bullet exit end or muzzle of a gun barrel. As best seen in FIGS. 2A and 2B, the barrel plug assembly A is made up of eight components identified by reference numbers  10 - 24 . A bolt  10  includes opposing threaded  10   a  and head  10   b  ends. The head  10   b  is preferably a male hexagon or other like key that is matched or mated to a socket  90   b  of an extraction rod  90  included in the wrench assembly B (see, e.g., FIGS. 3A-3D and  4 ). Optionally, the head  10   b  and the socket  90   b  are uniquely matched or mated so that no other combination of head  10   b  and socket  90   b  will properly fit together with one another. In this manner, only the socket  90   b  of the wrench assembly B which was intended for use with a given plug assembly A will fit that plug assembly&#39;s bolt head  10   b , and hence, only that wrench assembly B will be able to operate (i.e., turn) the bolt  10 . In this case, there exists a one-to-one correspondence between the bolt head  10   b  and the socket  90   b  of each plug/wrench assembly pair. Alternately, there may not be a one-to-one correspondence therebetween. Rather, there may be a limited number of bolt head configurations that match corresponding socket configurations. Optionally, the number of configurations is large enough so that it is statistically unlikely that a randomly selected socket  90   b  would fit together with a given bolt head  10   b.    
     In a preferred embodiment, the bolt  10  includes a bushing  10   c  which has a diameter larger than the bolt shaft  10   d  on which the threads  10   a  are formed. Preferably, the bolt  10  is formed from stainless steel or other similar metal or material. The bolt head  10   b  includes a hexagonal of other key shaped region  10   b ′ which lies beneath a protrusion or smooth stub  10   b ″. Consequently, for the socket  90   b  to mate with the key portion  10   b ′ of the bolt head  10   b  it has a matching recess which accepts the smooth stub  10   b ″ when the bolt head  10   b  is received in the socket  90   b.    
     A flanged bolt-retaining plug  12  is bonded to an expansion tube  14  which is in turn bonded to a threaded rear compression base  16 . With respect to a central longitudinal axis z, the flanged bolt-retaining plug  12  includes a longitudinally extending cylindrical member  12   a  and a radially extending flange  12   b  at a first end thereof. The flanged bolt-retaining plug  12  is sized to and does receive and retain the bolt  10 . An inner diameter of the cylindrical member  12   a  is two tiered. That is, the inner diameter of the cylindrical member  12   a  is tiered or stepped down to create an annular surface which is substantially normal to the axis z. The larger inner diameter of the cylindrical member  12   a  is sized to and does receive the bushing  10   c  of the bolt  10 . The smaller inner diameter of the cylindrical member  12   a  is less than the outer diameter of the bushing  10   c . The smaller inner diameter is sized to and does receive the shaft  10   d  of the bolt  10 . In this manner, when the bolt  10  is inserted through the flanged bolt-retaining plug  12 , the normal annular surface (created by the two tiered inner diameter of the cylindrical member  12   a ) abuts the bushing  10   c  thereby restricting the bolt  10  from passing longitudinally beyond a designated point with respect to the flanged bolt-retaining plug  12 . 
     Preferably, the flanged bolt-retaining plug  12  is made of brass or other like metal or other similarly hard, durable and/or rigid material. The flange  12   b  is preferably a plate which is substantially normal to the axis z. The perimeter and thickness of the plate are shaped and sized to be selectively engaged non-rotatably with a flange receiving portion  50   a  of a lower handle mount  50  included in the wrench assembly B (see, e.g., FIG.  4 ). Optionally, the flange  12   b  and the flange receiving portion  50   a  are uniquely matched or mated so that no other combination of flange  12   b  and flange receiving portion  50   a  will properly fit together with one another. In this manner, only the flange receiving portion  50   a  of the wrench assembly B which was intended for use with a given plug assembly A will fit that plug assembly&#39;s flange  12   b , and hence, only that wrench assembly B will be able to properly align with the plug assembly A and hold the flanged bolt-retaining plug  12  (and other components rotationally fixed thereto) rotationally fixed with respect to the lower handle mount  50 . In this case, there exists a one-to-one correspondence between the flange  12   b  and the flange receiving portion  50   a  of each plug/wrench assembly pair. Alternately, there may not be a one-to-one correspondence therebetween. Rather, there may be a limited number of flange configurations that match corresponding flange receiving configurations. Optionally, the number of configurations is large enough so that it is statistically unlikely that a randomly selected flange receiving portion  50   a  would fit together with a given flange  12   b.    
     It is to be noted that the combinations of wrench assemblies B and plug assemblies A that will permit the selective installing and uninstalling of any given plug assembly A in a firearm barrel is able to be limited insomuch as for the combination to cooperate both the flange  12   b  and flange receiving portion  50   a  have to match and the bolt head  10   b  and the socket  90   b  have to match. 
     The expansion tube  14  is a cylindrical member preferably made of rubber or other like material which expands radially when compressed longitudinally and contracts radially when stretched longitudinally. A first end of the expansion tube  14  is bonded to the second end  12   c  of the cylindrical member  12   a  opposite the flange  12   b . A first end of the compression base  16  is bonded to the second end of the expansion tube  14  opposite the flanged bolt retaining plug  12 . In this manner, the flanged bolt-retaining plug  12 , the expansion tube  14  and the compression base  16  are all rotationally fixed with respect to one another. The bolt shaft  10   d  extends entirely through the inner diameter of the expansion tube  14  such that the threads  10   a  may be engaged with the compression base  16 . The length of the bolt shaft  10   d  is preferably at least long enough to allow the expansion tube  14  to be longitudinally-uncompressed while the threads  10   a  are still engaged with the compression base  16  and the bushing  10   c  abuts the annular surface created by the two tiered inner diameter of the cylindrical member  12   a.    
     The compression base  16  is also preferably made from brass or another suitable metal or like material. The first end of the compression base  16  (i.e., the end proximate the expansion tube  14 ) has a threaded inner diameter arranged to receive the threaded end  10   a  of the bolt  10 . The second end is threaded or otherwise arranged to receive a screw-on expansion tube adapter  18  if the slide-on expansion tube  20  is being employed. Alternately, the plug extension  24  may be affixed to the second end of the compression base  16 . 
     When the caliber, bore or otherwise the inner diameter of the barrel in which the plug assembly A is to be installed is essentially the same or some determined amount larger than the outer diameter of the longitudinally-uncompressed expansion tube  14  (which is substantially equal to the outer diameter of the compression base  16  and the cylindrical member  12   a ), then the bore adjusting components C (i.e., one-way locking push nut  22 , slide-on expansion tube  20  and screw-on expansion tube adapter  18 ) are not used. Alternately, if the barrel bore is significantly larger, then the bore adjusting components C are used. 
     Essentially, there is a set of bore adjusting components C for each caliber or barrel bore diameter in which the plug assembly A may be installed. After determining the caliber or bore of the barrel in which the plug assembly A is to be installed, a user simply selects the set of bore adjusting components C designate for that barrel&#39;s inner diameter size or caliber. The outer diameters of the bore adjusting components C are substantially equal to or less than the inner diameter of the barrel in which they are intended to be used. The inner diameters of the one-way locking push nut  22  and slide-on expansion tube  20  allow them to fit snuggly over the outer diameters of the cylindrical member  12   a , the longitudinally-uncompressed expansion tube  14  and the compression base  16 . 
     Preferably, the expansion tube  14  and the sets of bore adjusting components C each fit a range of calibers or bore sizes. That is to say, as compared to O-rings and the like, the tubes  14  and  20  have a greater range of and/or capacity for radial expansion when longitudinally compressed. Accordingly, each individual tube size can fit and wedge into a number of different calibers or bore sizes. 
     Most preferably, between the tube  14  and one set of bore adjusting components C all calibers or bore sizes can be accommodated. In this case, the maximum radial expansion of the tube  14  is large enough to sufficiently wedge the plug assembly A in all barrels having inner diameters substantially equal to or less than the longitudinally-uncompressed outer diameter of the tube  20 . The bore adjusting components C are therefore used when the inner diameter of the barrel is substantially equal to or greater than the outer diameter of the tube  20 . 
     The one-way locking push nut  22  is preferably bonded to the first end of the slide-on expansion tube  20 . When used, the combination is slid over the outside of the cylindrical member  12   a , the longitudinally-uncompressed expansion tube  14  and the compression base  16 . The combined length of the one-way locking push nut  22  and the slide-on expansion tube  20  is substantially equal to the combined length of the cylindrical member  12   a , the longitudinally-uncompressed expansion tube  14  and the compression base  16 . The bulbous screw-on expansion tube adapter  18  is sized so as not to fit through the inner diameter of the slide-on expansion tube  20 , and the adapter  18  is preferably screwed onto the second end of the compression base  16  behind the second end of the slide-on expansion tube  20 . Optionally, the adapter  18  may otherwise be attached to the compression base  16 . When the bore adjusting components C are used then the plug extension  24  is affixed to the adapter  18 . 
     Preferably, the adapter  18  is made out of brass or another metal or like material and the slide-on expansion tube  20  is made of the same or similar material as the expansion tube  14 . The one-way locking push nut  22  is preferably made from spring steel or the like and the plug extension  24  is preferably a vinyl coated steel tension spring or the like. Alternately, the plug extension  24  may be a rigid member. 
     To affect installation, the distal end of the plug assembly A (with the expansion tube  14  and optional slide-on expansion tube  20  both being longitudinally uncompressed) is inserted into the bullet exit end of the barrel or muzzle of the firearm which is to be secured. As used herein the distal end of the plug assembly A refers to the end of the plug assembly A opposite the flange  12   b . Preferably, the flange  12   b  is larger than the inner diameter of the barrel and hence limits the depth to which the plug assembly A is inserted. That is to say, the flange  12   b  remains outside the barrel, preferably, abutting the end of the barrel through which the plug assembly A was inserted. 
     Using the hand ratcheting wrench assembly B, the bolt  10  is rotated in a first direction (e.g., clockwise) relative to the flanged bolt-retaining plug  12  which is held rotationally fixed with the flange receiving portion  50   a  of a lower handle mount  50  included in the wrench assembly B. Insomuch as the expansion tube  14  and the compression base  16  are rotationally fixed with respect to the flanged bolt-retaining plug  12 , they are also rotationally fixed relative to the rotating bolt  10 . Accordingly, due to the threaded engagement between the compression base  16  and the bolt  10  and the bushing  10   c  abutting the substantially normal annular surface created by the two tiered inner diameter of the cylindrical member  12   a , the relative rotation of the bolt  10  with respect to the compression base  16  causes the compression base  16  and the flanged bolt-retaining plug  12  to be drawn together thereby longitudinally compressing the expansion tube  14  therebetween. Likewise, if the bore adjustment components C are being used, the screw-on expansion tube adapter  18  is drawn with the compression base  16  toward the flanged bolt-retaining plug  12  thereby longitudinally compressing the slide-on expansion tube  20  therebetween. 
     The longitudinal compression of the expansion tube  14  causes the expansion tube  14  to bulge or radially expand and/or wedge against the inner diameter of the barrel in which it was inserted thereby securing the plug assembly A in the same. Alternately, if the slide-on expansion tube  20  is being employed, the expansion tube  14  bulges and/or applies a radially extending force outwardly against the inner diameter of the slide-on expansion tube  20 . At the same time, the slide-on expansion tube  20  will bulge or radially expand and/or wedge against the inner diameter of the barrel in which it was inserted. The dual wedging of the expansion tubes  14  and  20  prevents the barrel plug assembly A from being removed. In either case, the hand ratcheting wrench assembly B may then be removed, and absent access to the corresponding wrench assembly B, the firearm is now secured from unauthorized use. 
     To uninstall the plug assembly A from a barrel, the hand ratcheting wrench assembly B is re-engaged with the plug assembly A and used to rotate the bolt  10  in a second direction opposite the first (e.g., counterclockwise) while the flanged bolt-retaining plug  12  is held rotationally fixed with the flange receiving portion  50   a  of a lower handle mount  50  included in the wrench assembly B. Again, insomuch as the expansion tube  14  and the compression base  16  are rotationally fixed with respect to the flanged bolt-retaining plug  12 , they are also rotationally fixed relative to the rotating bolt  10 . This time, however, the opposite relative rotation of the bolt  10  with respect to the compression base  16  releases the longitudinal compression applied to the expansion tube  14 . Likewise, if the bore adjustment components C are being used, the longitudinal compression applied to the slide-on expansion tube  20  is also released. Upon the release of the longitudinal compression to the expansion tube  14  and/or the slide-on expansion tube  20 , the bulge or radially expansion therein and/or the radial force exerted thereby subsides and the plug assembly A is no longer wedge against the inner diameter of the barrel in which it was inserted thereby freeing it for extraction from the same by pulling on the flange  12   b  with the hand ratcheting wrench assembly B. Then, if desired, the wrench assembly B may be detached from the plug assembly A. Alternately, the wrench assembly B may be detached prior to extracting the plug assembly A and the plug assembly A extracted by pulling on the flange  12   b  by hand. In either case, the firearm is now unsecured and ready for use. 
     It is to be appreciated that to prevent unwanted twisting and/or turning of various components while the bolt  10  is being rotated, the threaded rear compression base  16  and the flanged bolt-retaining plug  12  are bonded to the expansion tube  14 . The screw-on expansion tube adapter  18  is also mechanically connected to the compression base  16  and therefore it is also rotationally fix with respect to the flanged bolt-retaining plug  12  which is held against rotation while the bolt  10  is being turned. Preferably, the slide-on expansion tube  20  is bonded to the screw-on expansion tube adapter  18  and the one-way locking push nut  22  is bonded to the slide-on expansion tube  20 . All of the above mentioned bonded and affixed points cooperate not only to prevent each part from twisting and/or turning undesirably, they also give the barrel plug assembly&#39;s expansion tubes  14  and/or  20  the ability to be stretched and/or elongated when the bolt  10  is rotated to remove the barrel plug assembly A from the barrel. The aforementioned stretching and/or elongating is advantageous insomuch as it encourages the radial contraction of the expansion tubes  14  and/or  20  which might otherwise remain completely or partially expanded due to the shape memory characteristics of the material from which they are made. That is to say, if an elastic tube is longitudinally compressed for an extended period of time and then released, the elastic tube may not immediately relax and/or return to its original radial dimension on its own. Accordingly, there may be a tendency for the plug assembly A to remain somewhat wedged in the barrel and therefore its extraction from the barrel may be correspondingly hampered. However, in accordance with a preferred embodiment of the present invention, the relative bonding of the plug assembly components ensures that loosening of the bolt  10  will elongate and/or longitudinally stretch the expansion tubes  14  and/or  20  thereby encouraging their radial contraction which in turn facilitates quick and easy extraction of the plug assembly A from the barrel. 
     Of course, the longitudinal stretching is only achieved when the compression between the flanged bolt-retaining plug  12  and the base  16  is released via a loosening of the blot  10 . That is to say, so long as the bolt  10  continues to hold the flanged bolt-retaining plug  12  and the base  16  drawn together, pulling on the flange  12   b  will not stretch or elongate the expansion tubes  14  and/or  20 . In this manner, the degree to which the plug assembly A is wedged in the barrel is not lessened by merely pulling on the flange  12   b  without first untightening the bolt  10 . Accordingly, security is not compromised by this feature. 
     It is to be appreciated that with the extension rod  90  locked in the extended position and the tabs  54  (described later herein) holding the flange  12   b  in the receiving portion  50   a  of the lower handle mount  50 , the bolt  10  is kept from pushing out of the bolt-retaining plug  12  when it is loosened. The bushing  10   c  acts as a step such that the top of the bushing  10   c  will press against the bottom of the extraction rod&#39;s socket  90   b . Consequently, loosening of the bolt  10  pushes the bolt-retaining plug  12  and the compression base  16  apart from one another and longitudinally elongates the tube  14  (and tube  20  if used) thereby radially contracting the same. 
     The flanged bolt-retaining plug  12  serves a number of purposes. It is used to prevent the barrel plug assembly A from being forced through the barrel, and it keeps the bolt  10  and the slide-on expansion tube  20  aligned within the assembly. The flanged bolt-retaining plug  12  also prevents the bolt  10  from being tampered with insomuch as the bolt  10  is recessed therein. The flange  12   b  also provides a means to hold desired plug assembly parts rotationally fixed while the bolt  10  is being turned. The flanged bolt-retaining plug  12  gives both the expansion tube  14  and the slide-on expansion tube  20  a compression point. The flange  12   b  is also used as an attachment point for the hand ratcheting wrench assembly B. 
     In addition to wedging the plug assembly A into the muzzle end of the firearm&#39;s barrel, the rest of the barrel will contain and/or be blocked by the plug extension  24  which may be optionally a rigid member or a tension spring (optionally, vinyl coated) or the like. Preferably, the plug extension  24  is long enough to extend into and/or through the loading chamber or the action/receiver portion of the firearm. Consequently, after the barrel plug assembly A has been locked into place, the plug extension  24  will not permit the firearm to be loaded. 
     Consider, for example, a revolver  200  having a barrel  210  and cylinder  220  (see, e.g., FIGS.  5 A through  7 ). The plug assembly A may be locked into place when the revolver&#39;s cylinder  220  is removed from its firing position (not shown). With the plug extension  24  preferably extending into the cylinder housing, the cylinder  220  is prevented from being returned to the firing position and therefor a chamber in the cylinder  220  cannot be aligned with the barrel  210  or firing mechanism. Alternately, the plug assembly A may be installed when an empty cylinder chamber is in the firing position, e.g., as shown in FIG.  7 . With the plug extension  24  preferably extending into a cylinder chamber, the cylinder  220  cannot therefore be removed for loading. Even if other chambers may be loaded without removing the cylinder  220 , the cylinder  220  cannot be rotated to bring the loaded chamber into alignment with the barrel  210  and firing mechanism. 
     Preferably, the plug extension  24  is mechanically connected to the end of the compression base  16  (or the end of the screw-on expansion tube adapter  18 , if used) so that it cannot be forcibly removed from the barrel. 
     As noted previously, the specially keyed bolt  10  prevents an individual from loosening the plug assembly A without the designated wrench assembly B. In a preferred embodiment, the bolt  10  has a head  10   b  which is designed with a smooth stud  10   b ″ that protrudes from above the hexagonal or otherwise keyed potion  10   b ′. This combination of stud and keyed portion prevents an individual from loosening or unscrewing the bolt  10  and releasing plug assembly A from the barrel without the socket  90   b  that fits over the stud  10   b ″ while mating up with keyed portion  10   b′.    
     The bolt&#39;s bushing  10   c  also serves a number of purposes. For example, it facilitates easy engagement of the hand ratcheting wrench&#39;s extraction rod  90  (see, e.g., FIG.  4 ), it aids alignment and it is used as a pressure contact point. The bushing  10   c  is preferably arranged directly under the bolt head  10   b  and is an integral part of the bolt  10 . It aids in keeping the bolt head  10   b  centered and aligned with the central axis z within the inner diameter of the flanged bolt-retaining plug  12 . This centering/alignment ensures that the hand ratcheting wrench&#39;s extraction rod  90  can be readily and accurately engaged with and/or disengaged from the bolt head  10   b  which is located in the flanged bolt-retaining plug  12 . 
     Preferably, there is a close tolerance fit between the outer diameter of the bushing  10   c  and the larger inner diameter of the cylindrical member  12   a  and between the bushing&#39;s interface with the normal annular surface created by the two tiered inner diameter of the cylindrical member  12   a . This helps prevent the expansion tube  14  and the rear compression base  16  from bending out of alignment when the expansion tube  14  is compressed. The bushing  10   c  is also used as a contact point as it presses against the normal annular surface created by the two tiered inner diameter of the cylindrical member  12   a  when the bolt  10  is tightened to lock or wedge the barrel plug assembly A in the barrel. 
     The flanged bolt-retaining plug  12  has a number of noteworthy features. The flange  12   b  serves as a stop, is preferably slim line and compact, can fit any barrel size and is tamper resistant. The flange  12   b  is used as a “stop.” The flange  12   b  will not permit the barrel plug assembly A to be forcibly pushed through the barrel&#39;s bore. It will also visually indicate if the barrel plug assembly A has been installed, and it ensures installation at the proper depth in the barrel&#39;s bore. Preferably, when properly installed, the bottom or under side of the flange  12   b  butt against the firearm&#39;s mussel or flash guard. As used here, the bottom or under side refers to the side of the flange  12   b  which is proximate the cylindrical member  12   a.    
     The flange&#39;s shape mates with and is held by the hand ratcheting wrench&#39;s lower handle mount  50  (see, e.g., FIGS. 1A-1D and  4 ). The flange  12   b  can therefore be held against rotation. This prevents components rotationally fixed with respect to the flange  12   b  (e.g., the rear compression base  16 ) from rotating and/or turning when the hand ratcheting wrench assembly B applies a torque to the barrel plug assembly&#39;s bolt  10 . 
     In a preferred embodiment, the flange  12   b  has a slim line and/or compact face, so that two or more of the barrel plug assemblies A, with the same or different calibers, can be mounted side by side in firearms with double barrels. See, e.g., the short dimension w shown in FIG.  2 B. 
     If an excessive prying force or torque is applied to the flange  12   b , the flange  12   b  is preferably designed to break away from the rest of the flanged bolt-retaining plug  12 . This breakaway design is achieved in one preferred embodiment by machining a small groove  12   b ′ (e.g., 0.500 inch in diameter, 0.063 inch wide and 0.062 inch deep) on the under side of the flange  12   b  and centered around the outer circumference of the cylindrical member  12   a . Given an exemplary outer diameter of 0.200 inches for the cylindrical member  12   a , and the 0.500 inch diameter of the portion of the flange  12   b  that remains after the rest has been forcibly broken off, there will remain a 0.150 inch flange shoulder (i.e., (0.500−0.200)/2=0.150). This 0.150 inch shoulder not only prevents the barrel plug assembly A from compromising any of its design and/or safety integrity, but also prevents an unauthorized individual from forcibly removing (by pushing and/or prying) the locked barrel plug assembly A from the barrel in which it is installed. That is to say, the shoulder is significant enough to prevent the plug assembly A from being pushed through the barrel, but not significant enough for someone to grab a hold of and/or use for leverage to pull the plug assembly A from the muzzle. 
     The flange  12   b  is also used as a stop and compression point for the slide-on expansion tube  20  and one-way locking push nut  22 . That is to say, the flange  12   b  prevents them from moving forward, away from or out of the muzzle of the firearm, when the bolt  10  is tightened. 
     The taper end  12   c  of the flanged bolt-retaining plug  12  facilitates the installation and removal of the barrel plug assembly A. The tapered end  12   c  is mated to and “permanently” bonded with (e.g., via chemical bonding, adhesive or the like) one of the tapered ends  14   a  of the expansion tube  14 . The tapered end of both parts, when combined, produce a greater bonding surface area and a stronger bond therebetween. This increases the ability of the expansion tube  14  to longitudinally compress or stretch and also prevents it from twisting/turning when a torque is applied to bolt  10  and the flanged bolt-retaining plug  12  is held rotationally fix. The greater bonding area, produced by the tapered ends, is particularly advantageous when the expansion tube  14  is stretched or elongated because, it will facilitate the removal of the barrel plug assembly A from the barrel. As previously pointed out, the stretching/elongating of the expansion tube  14 , and hence radially contracting the same, is useful because if an elastic tube is compressed for an extended period of time and then released, the elastic tube may not immediately relax and return to its original condition/dimension. If the tube does not return to its original condition/dimension on its own, it may cause the uncompressed elastic tube, or in this case, the expansion tube  14  to interfere/press against the inner diameter of the firearm barrel. Without longitudinally stretching/elongating the expansion tube  14 , and hence radially contracting the same, it may be difficult to remove the barrel plug assembly. 
     Alternately, instead of using the tapered end and, e.g., chemically bonding between the flanged bolt-retaining plug  12  and the expansion tube  14 , a longitudinally notched, annularly ribbed or like patterns or configurations are used in conjunction with a press fitting. The joint or connection thus formed is maintained via mechanical interference and/or the press fitting. This prevents the relative rotation of the joined parts. To keep the ends from separating, when the expansion tube  14  is stretched or elongate, a one-way locking push nut (e.g., similar to the one-way locking push nut  22 ) is optionally molded into the end of the expansion tube  14 . The push nut is, e.g., made of spring steel with bent tabs. The tabs are bent approximately 90 degrees and are located in the opposite direction in which an approximately 45 degree chamfer radius is bent. In addition, the tabs are preferably equally spaced around the spring steel push nut&#39;s outer diameter. As the tabs engage with the notched pattern, e.g., located on the flanged bolt-retaining plug  12 , the spring steel push nut will grab onto the flanged bolt retaining plug and will not allow the expansion tube  14  to pull off of the flanged bolt-retaining plug  12 . 
     It is to be noted that, optionally, in any of the same manners that the expansion tube  14  is affixed to the flanged bolt-retaining plug  12  it may also be affixed to the rear compression base  16 . 
     In a preferred embodiment, the fit and clearance between the flanged bolt-retaining plug  12  and the specially keyed bolt  10  provides self alignment and tamper resistance. The flanged bolt-retaining plug  12  is designed so that the bolt  10  slides into its bore which is, e.g., 0.140 inches in diameter on the top or exposed side of the flange  12   b . As used here the top or exposed side refers to the side or face of the flange  12   b  opposite of the cylindrical member  12   a . To keep the bolt  10  from sliding all the way through the bolt-retaining plug  12 , a fixed bushing  10   c  attached to or integrated with the bolt  10  abuts against the ledge or substantially normal annular surface created by the two tiered inner diameter of the cylindrical member  12   a . The tolerances between the flanged bolt-retaining plug&#39;s bore diameter and the depth of the ledge, and the diameter of the bushing  10   c  and the distance from the bottom of the bushing  10   c  to the top of the stud  10   b ″ is all arranged and/or maintained so that the barrel plug assembly A and the removable hand ratcheting wrench assembly B will work properly and provide a secure and tamper resistant device. 
     Preferably, the bolt  10  and the flanged bolt-retaining plug&#39;s hole or inner bore are slip fit toleranced so that the bolt  10  is essentially only able to move up or down along and/or in a rotational direction in relationship to the flanged bolt-retaining plug&#39;s center line or the axis z. In the flanged bolt-retaining plug  12 , the combination of an axially normal ledge or annular surface and a longitudinal constraint (i.e., the wall of the bore), the barrel plug assembly A is substantially self aligning. Additionally, the axially normal ledge or annular surface is used as a contact point and as a longitudinal constraint for the bushing  10   c . In one preferred embodiment, the axially normal ledge or annular surface is arranged at such a depth that the bolt rests approximately 0.25 inches below the top surface of the flange  12   b . Accordingly, an individual without the hand ratcheting wrench assembly B will not be able to grab or hold onto the bolt head  10   b  due to the combined 0.25 inch depth and 0.140 inch diameter hole clearance. 
     The expansion tube  14  is preferably made from a petroleum resistant polymer synthetic elastomer material that has good compressive and tension characteristics. The tapered ends  14   a  of the expansion tube  14  are preferably chemically bonded, permanently, to the tapered end  12   c  of the flanged bolt-retaining plug  12  and the tapered end  16   a  of the rear compression base  16 . The small diameter of the parts make the tapered end advantageous. The tapered ends permit a greater bonding area which in turn translates into a stronger bond and hence the advantages attendant thereto. The length of the expansion tube  14  also provides a larger gripping area. That is to say, the expansion tube&#39;s length provides a larger contact/gripping area and when longitudinally compressed creates a greater outside diameter, as compared to, e.g., conventional “O” rings. This feature enables the barrel plug assembly A to work with a range of different firearm calibers and/or bore diameters. However, for firearms with calibers or bore diameters too large for the expansion tube  14  to wedge up against itself, the slide-on expansion tube  20  may be used. 
     The distal end threaded rear compression base  16  is arranged to mate either with the screw-on expansion tube adapter  18  or the plug extension  24 . Such versatility allows an individual to use barrel plug assembly A with different calibers or barrel bore diameter. The screw-on expansion tube adapter  18  is designed to quickly screw on to the back of the threaded rear compression base  16 . This screw-on feature allows the barrel plug assembly A to be quickly and easily converted to a larger caliber/diameter (by selecting bore adjustment components C with varying outer diameters) without having to change the entire base assembly (i.e., elements  10 - 16  and  24 ). The plug extension  24  (optionally, rigid or tension spring) can also be screwed into the threaded rear compression base  16  or otherwise attached thereto by suitable means. Again, this screw-on feature allows the barrel plug assembly A to be quickly and easily converted to accommodate varying barrel lengths (by selecting plug extension  24  with varying lengths) without having to change out the entire base assembly. 
     The screw-on expansion tube adapter  18  is preferably designed to quickly screw-on to the back of the threaded rear compression base  16  when selected for use and the plug extension  24  can then be screwed into the tapered side of the expansion tube adapter  18 . 
     In one preferred embodiment, the tapered end  18   a  of the expansion tube adapter  18  is bonded to the tapered end  20   a  of the slide-on expansion tube  20 . Both parts are affixed together so that the slide-on expansion tube  20  can be effectively compressed or stretched/elongated, and be prevented from twisting. Again, to produce a stronger bonded area between both of the parts, the mated ends of the expansion tube adapter  18  and the slide-on expansion tube  20  are arranged with a tapered fit. The expansion tube adapter  18  preferably also has an approximately 45 degree chamfered distal end that is used to help guide the barrel plug assembly A into the muzzle during the installation process. 
     The plug extension  24  prevents the firearm from being loaded, which in turn, makes the weapon inoperable. In accordance with preferred embodiments, the plug extension  24  is optionally a rigid member or a tension spring. It is arranged to be readily attached to or screwed on to the tapered end of the screw-on expansion tube adapter  18  if employed, or alternately, to the threaded rear compression base  16 . 
     The rigid plug extension  24  is arranged so that the extension  24  will not be able to be removed from the barrel plug assembly through the rear or breech of a firearm. That is to say, the length and inflexibility of the rigid plug extension  24  prevents it from being bent and/or pulled out laterally and/or rearwardly through the breach of the firearm. In a preferred embodiment, this rigid plug extension  24  will be available in a single length which will be cut to fit each respective barrel length. The rigid plug extension  24  enables the barrel plug assembly A to be lengthened so that it will be able to block the entire barrel of a firearm. The rigid plug extension  24  may be made of any lightweight material including aluminum, brass, fiberglass, semi-hard or hard rubber or the like. The lightweight material preferably has certain material characteristics such that, e.g., the material will not compress, is light-weight, has a minimal deflection and is soft enough not to scratch the barrel&#39;s inner bore. 
     The tension spring version of the plug extension  24  is preferably also arranged to be irremovable from the barrel plug assembly through the rear or breech of a firearm, and will preferably come in a single size that is cut to length for a particular firearm. The tension spring is preferably made of a heavy gauge galvanized steel wire and is shaped into a tight continuous-length closed-pattern spring that is vinyl covered and semi-flexible. The vinyl cover will protect the barrel from being scratched when the barrel plug assembly A is installed or removed from the barrel. When using the plug extension tension spring  24  with the barrel plug assembly A in a gun with a very long barrel, the flexibility of the tight continuous-length closed-pattern extension spring design will aid in the installation and removal of the barrel plug assembly A. The spring can also be curled up for easy storage. Accordingly, the user will not have to struggle with a small diameter long solid rod that could get bent or broken during installation, removal or storage. 
     The tapered end  20   a  of the slide-on expansion tube  20  that mates with the face of the one-way locking push nut  22  is preferably chemically or otherwise bonded thereto. The bonded ends preferably have an approximately 45 degree chamfer radius that produces a greater chemical bonding area therebetween. This creates a stronger bond and hence the advantages attendant thereto are achieved, e.g., the bonding strength for effectively compressing or stretching/elongating the tube  20 , and to prevent it from twisting/turning when a torque is applied to the bolt  10 . 
     A selection of slide-on expansion tubes  20  with varying outer diameters allows versatile use of the barrel plug assembly A. Particular slide-on expansion tubes  20  can be installed over the original barrel plug assembly (i.e., elements  12 - 16 ) to quickly, easily and inexpensively convert the original barrel plug assembly&#39;s smaller outer diameter to a larger outer diameter. This convenient conversion gives the gun owner the ability to use the same barrel plug assembly A in any firearm regardless of bore or the barrel&#39;s inner diameter. 
     The size and tolerance of the slide-on expansion tube&#39;s inner diameter is noteworthy with respect to the design and versatility of the barrel plug assembly A. Preferably, the slide-on expansion tube&#39;s inner diameter is designed to have a close slip fit tolerance, when installed over the original barrel plug assembly&#39;s cylindrical body. This close slip fit tolerance is arranged so that when the bolt  10  is tightened, not only will it cause the expansion tube  14  to longitudinally compress and bulge out, but it will also cause the slide-on expansion tube  20  to simultaneously longitudinally compress and bulge out. Since the expansion tubes  14  and  20  have such a close slip fit tolerance, the bulging out of the expansion tube  14  will immediately start to push radially outward on the slide-on expansion tube&#39;s inner diameter. This radial outward force helps lock the expansion tube  14  to the slide-on expansion tube  20  in the form of an interference fit. This interference fit resists the expansion tubes  14  and  20  from being forcibly separated when the barrel plug assembly A is installed. Also, the slide-on expansion tube  20  is made to have a more uniform distribution of radial and compressive forces exerted on the inner diameter on the firearm&#39;s bore. These uniformly distributed forces provide a tighter wedging force between the barrel and the slide-on expansion tube  20 . 
     The slide-on expansion tube&#39;s long length also provides a larger contact/gripping area which is advantageous for larger caliber firearms and when compressed creates a greater outside diameter as compared to conventional “O” rings. The slide-on expansion tube&#39;s long length and greater contact/gripping area, will preferably not increase the overall length of the barrel plug assembly A due to the fact that the slide-on expansion tube  20  slides over substantially the entire combined length of the metal threaded rear compression base  16 , the rubber expansion tube  14  and the cylindrical member  12   a  of the metal flanged bolt-retaining plug  12 . The stop that the flanged bolt-retaining plug  12  provides, and the larger contact/gripping area that the slide-on expansion tube  20  provides, enable the barrel plug assembly A to work with all ranges of gun calibers without compromising security and durability. 
     The one-way locking push nut  22  is preferably chemically or otherwise bonded to the end  20   a  of the slide-on expansion tube  20 . The bonded ends preferably have a slotted 45 degree chamfer radius that produce a greater bonding area between each part. This greater bonding area gives the one-way locking push nut  22  rigidity and strength, while giving the slide-on expansion tube  20  the needed bonding strength to effectively compress or stretch/elongate and also to prevent it from twisting/turning when a torque is applied to the specially keyed bolt  10 . 
     In a preferred embodiment, the one-way locking push nut  22  is made of spring steel and is arranged with an approximately 45 degree chamfer radius that is slotted in four equally spaced places. In one preferred embodiment, the slotted 45 degree chamfer radius forms an approximate 0.190 inch diameter hole at its center. The 0.190 inch diameter center hole is sized to form an interference fit over the flanged bolt-retaining plug&#39;s 0.200 inch diameter metal cylindrical member  12   a . The locking push nut  22  is a one way nut. The nut&#39;s slotted 45 degree chamfer radius is designed to flex around and over the flanged bolt-retaining plug&#39;s 0.200 inch diameter cylindrical member  12   a  when the nut is pushed forwards onto the same. After the one-way locking push nut  22 , which is bonded to the slide-on expansion tube  20 , has been installed over the cylindrical member  12   a , the nut&#39;s slotted 45 degree chamfer radius hole&#39;s inner edge will dig/grab into the outer diameter of cylindrical member  12   a  when the slide-on expansion tube  20  is urged in the direction opposite the one-way nature of the nut  22 , e.g., by pulling on the flange  12   b . The harder an individual tries to separate the slide-on expansion tube  20  from the flanged bolt-retaining plug  12 , the more the one-way locking push nut&#39;s 45 degree chamfer radius will dig and/or grab into the cylindrical member  12   a.    
     The outside diameter of the one-way locking push nut  22  is preferably sized to cover the entire outer diameter of the slide-on expansion tube  20 . If an unauthorized individual attempts to obtain access to the firearm by breaking away the flange  12   b  and damaging the petroleum resistant polymer synthetic elastomer material that the slide-on expansion tube  20  is made out of, the one-way locking push nut&#39;s, which is pressing against the portion of the flange remaining after the break-away (see, e.g., the above description), will create a steel barrier at the muzzle of the firearm. This barrier will prevent an unauthorized individual from damaging the barrel plug assembly A to the point where it could be forcibly removed from the barrel. 
     One preferred embodiment of the hand ratcheting wrench assembly B is shown in FIGS. 3A-D. The illustrated hand ratcheting wrench assembly B has multiple features. It is used to effect the installation the barrel plug assembly A in the bullet exit end/muzzle of a gun barrel, and it also is used to effect quick and easy removal of the barrel plug assembly A from the weapon&#39;s barrel (i.e., de-installation of the plug assembly A). In addition, the wrench assembly B serves as a torque limiter, a ratchet, an extraction rod retraction lock, an extraction rod extension lock, and as a holder/attachment point for the barrel plug assembly A. 
     The lower handle mount  50  is used to hold the barrel plug assembly A for easy installation and removal. As indicated above, the wrench assembly B is selectively engaged with the plug assembly A via the lower handle mount  50  which has a flange receiving portion  50   a  that mates with the flange  12   b  of the plug assembly A. The flange receiving portion  50   a  mates with the flange  12   b  such that the relative rotational orientation therebetween remains fixed so long as the wrench assembly B and the plug assembly A are engaged. In a preferred embodiment, during the installation and removal process, three mating sides  52   a-c  (best seen in FIGS. 1A and 1C) of the two combined parts will prevent the rest of the barrel plug assembly A from rotating when a torque is applied to the bolt  10 . 
     Preferably, the flange  12   b  and the flange receiving portion  50   a  of the lower handle mount  50  have a close tolerance fit such that when the flange  12   b  is properly seated in the receiving portion  50   a  of the lower handle mount  50 , an opening  56  is aligned along the longitudinal axis z with the bore of the flanged bolt-retaining plug  12  and the head  10   b  of the bolt  10  housed therein. In this manner, the flange receiving portion  50   a  of the lower handle mount  50  aligns and/or centers the wrench assembly B with the flanged bolt-retaining plug  12  so that the wrench&#39;s extraction rod  90  can easily and quickly be extended and/or retracted through the opening  56  for accurate selective engagement with the head  10   b  of the bolt  10  which is recessed in the flanged bolt-retaining plug  12 . 
     The extraction rod  90  is aligned and/or guided though a hollow shaft  58  (best seen in FIGS. 3B and 3C) in the lower handle mount  50  which terminates in the opening  56 . Preferably, the shaft  58  and opening  56  are slip fit toleranced so that the extraction rod  90  can slide longitudinally therethrough and rotate therein with only a minor end play or deviation from the center line or axis z. A close tolerance assures that the extraction rod  90  will be properly aligned with the head  10   b  of the bolt  10  located in the flanged bolt-retaining plug  12 . 
     Elbow shaped tabs  54  form a slot into which the flange  12   b  is laterally slid or otherwise radially received with respect to the axis z. When the wrench and plug assemblies are engaged with one another (see, e.g., FIG.  1 A), the tabs  54  wrap around the flange  12   b  restricting it from longitudinal separation from the lower handle mount  50  and hence the wrench assembly B. Moreover, when flange  12   b  is properly engaged with and/or seated in the receiving portion  50   a  of the lower handle mount  50  and the extraction rod  90  is in the extended position (as shown in FIG.  3 C), the extraction rod  90  extends through the opening  56  and into the bore of the flanged bolt-retaining plug  12  such that the plug  12  (and hence the plug assembly A) is restricted from sliding out of the slot laterally or radially with respect to the axis z. Accordingly, when the extraction rod  90  is extended, the plug and wrench assemblies are effectively locked together insomuch as the tabs  54  restrict the flange  12   b  from being longitudinally disengaged from the lower handle mount  50  and the extraction rod  90  extending into the bore of the flanged bolt-retaining plug  12  restricts the plug  12  from being laterally disengaged from the lower handle mount  50 . This locking feature permits the barrel plug assembly A and the hand ratcheting wrench assembly B to work as one assembly, and therefore makes the installation and removal of the barrel plug assembly A a simple, one handed procedure. In addition, if the two assemblies are left together, in the locked position, when the barrel plug assembly A is not installed in a gun, the two assemblies will not become separated and one will not become lost or separated from the other when stored away. 
     An upper portion  60  of the wrench assembly B is defined by three parts, namely, a inner retaining disk  62 , a housing drum  64  and a housing cap  66 , which collectively house or contain the wrench assembly components or parts numbered with reference numerals  80  through  110 . The housing drum  64  is sandwiched between the inner retain disk  62  and the housing cap  66  which are secured to one another via a plurality of screws  68  or other like fasteners. Preferably, the lower handle mount  50 , the inner retaining disk  62 , the housing drum  64  and the housing cap  66  are formed or made from a suitably strong, hard, rigid and/or durable material, such as, aluminum or other metal or like material. 
     The upper portion  60  and the lower handle mount  50  are joined so as to be freely rotatable about the central z axis with respect to one another. Preferably, as shown, a plurality of set screws  70  extend through the housing drum  64  into a circumferential channel  59  formed in the end of the lower handle mount which is arranged inside the end of the housing drum  64  opposite the housing cap  66 . In this manner, the upper portion  60  and lower handle mount  50  are joined together while being free to rotate about the z axis relative to one another. 
     The lower hand mount  50  is used to selectively secure the extraction rod  90  from unauthorized use and/or tampering. That is to say, to make the ratcheting wrench assembly B tamper resistant and/or to provide additional security, a user may choose to retract the extraction rod  90  upward into the lower hand mount  50 . Retracting the extraction rod  90  into the lower hand mount  50  will protect the extraction rod  90  from being damaged if the hand ratcheting wrench assembly B is dropped, and will also prevent an unauthorized individual from using the hand ratcheting wrench assembly B. FIG. 3B shows the extraction rod in the retracted position, and FIG. 3C shows the extraction rod  90  in the extended position. 
     The extraction rod  90  is selectively moved and locked into each of the respective positions shown in FIGS. 3B and 3C by using a keyed push lock assembly which includes a lock cylinder  80 , a lock cylinder housing  82 , a locking lever  84 , a washer  86  and a screw  88 . As shown, the washer  86  is an external toothed lock washer, and the screw  88  is a cross recessed pan head machine screw, however, alternate fasteners may be used. The screw and washer  88  and  86 , respectively, fasten the locking lever  84  to the lock cylinder  80  which is housed in the lock cylinder housing  82 . 
     The lock cylinder  80  is operated with a key (not shown) that fits in a key hole  80   a  (best seen in FIG. 1B) so as to selectively rotate within the lock cylinder housing  82 . By rotating the lock cylinder  80 , the locking lever  84  fastened thereto is selectively engaged with (or disengaged from) one of two receiving slots  66   a  and  66   b  formed in the housing cap  66 . When cylinder  80  is rotated such that the lever  84  is disengaged from both slots  66   a  and  66   b , the cylinder  80  and cylinder housing  82  are free to move longitudinally along the z axis. When cylinder  80  is rotated and longitudinally positioned such that the lever  84  is engaged with slot  66   a , the cylinder  80  and cylinder housing  82  are locked in the undepressed position shown in FIG.  3 B. When cylinder  80  is rotated and longitudinally positioned such that the lever  84  is engaged with slot  66   b , the cylinder  80  and cylinder housing  82  are locked in the depressed position shown in FIG.  3 C. 
     In a preferred embodiment, the extraction rod  90  has a head  90   a  opposite the socket  90   b . The head  90   a  of the extraction rod  90  is urged or pressed against a butt end  82   a  of the lock cylinder housing  82  by a compression spring  92  acting on a spring retainer  94  which is positioned between one end of the spring  92  and the head  90   a  of the extraction rod  90 . The end of the compression spring  92  opposite the spring retainer  94  pushes off a fixed interior lateral ledge or annular lip within the housing drum  64 . Accordingly, the spring  92  pushes or urges the extraction rod  90  toward the lock cylinder housing  82 , and biases the push lock to the undepressed position and the extraction rod  90  to the retracted position, as shown in FIG.  3 B. As the extraction rod  90  is biased against the butt end  82   a  of the lock cylinder housing  82 , the position of the extraction rod  90  is controlled by the longitudinal position of the of the push lock. When the push lock is moved into and/or locked in the depressed position, it effects the placement of the extraction rod  90  into the extended position, as shown in FIG. 3C, and when the push lock is moved into and/or locked in the undepressed position, it effects the placement of the extraction rod  90  into the retracted position, as shown in FIG.  3 B. 
     With reference to FIGS. 3A,  8 A and  8 B, a ratchet assembly portion of the wrench assembly B allows the extraction rod  90  to be rotated in either direction using a continuous ratcheting motion to selectively tighten or loosen the bolt  10 . The ratchet assembly includes a ratchet slip clutch gear  100 , a pair of ratchet arms  102   a  and  102   b , corresponding ratchet arm compression springs  104   a  and  104   b , and a ratchet arm selector  106 . 
     The ratchet slip clutch gear  100  has a triangular spur gear tooth pattern/profile  100   b  that symmetrically raps around its outer diameter. The two ratchet arms  102   a  and  102   b  are positioned opposing one another about the outer diameter of the gear  100 . The arms  102   a  and  102   b  are pivotally secured at one end between the inner retaining disk  62  and a fixed interior lateral ledge or annular lip within the housing drum  64 . The opposing ends of the arms  102   a  and  102   b  are biased toward the toothed outer diameter of the gear  100  by their respective compression springs  104   a  and  104   b . The two ratchet arms  102   a  and  102   b  are positioned so that they line up/mate with the triangular spur gear&#39;s tooth root diameter and edge profile. 
     The ratchet arm selector  106  includes a lever  106   a  and a cam  106   b  at opposing ends of a shaft  106   c . The selector  106  is arranged such that the lever  106   a  extends out of the housing cap  66  for manipulation by the user. By flipping the lever  106   a  90 degrees to the left and/or right, a user selectively rotates the shaft  106   c  (which is preferably parallel with and radially offset from the z axis) and the cam  106   b  at the opposing end. The cam  106   b  is positioned between the arms  102   a  and  102   b  and the gear  100  such that in accordance with the manipulation of the lever  106   a  the cam  106   b  effects the disengagement of one of the ratchet arms from the gear  100  and effects the engagement of the other ratchet arm with the gear  100 . Depending upon its rotational position, the cam  106   b , acting against the biasing force of one of the springs  104   a  and  104   b , deflects one of the arms  102   a  and  102   b  about its pivot point while the undeflected arm is urged or pressed into engagement with the gear  100  by the biasing force of it its compression spring. 
     In the following context, clockwise and counterclockwise refer to the direction of rotation when viewed from the housing cap  66  end of the wrench assembly B. When the lever  106   a  is flipped so that the arm  102   a  is pressed against the gear  100  by the spring  104   a  and the arm  102   b  is deflected by the cam  106   b , a continuous ratcheting motion (i.e., continuous rotation in alternating directions) applied to the upper portion  60  of the wrench assembly B advances the gear  100  counterclockwise. This is because, on the counterclockwise stroke applied to the upper portion  60 , the housing drum  64  and the inner retaining disk  62  rotate counterclockwise, and the arm  102   a  moving therewith engages the teeth  100   b  on the outer diameter of the gear  100  and the gear  100  is rotated counterclockwise. On the clockwise stroke applied to the upper portion  60 , the housing drum  64  and the inner retaining disk  62  rotate clockwise, but the arm  102   a  moving therewith does not engage the teeth  100   b  on the outer diameter of the gear  100  and the gear  100  does not rotate. Rather, on the clockwise stroke, the arm  102   a  is free to deflect about its pivot point against the biasing force of the spring  104   a , and so, the teeth  100   b  on the outer diameter of the gear  100  deflect the arm  102   a  (rather than engage with it) as the arm  102   a  is dragged across them. 
     Conversely, when the lever  106   a  is flipped so that the arm  102   b  is pressed against the gear  100  by the spring  104   b  and the arm  102   a  is deflected by the cam  106   b , a continuous ratcheting motion applied to the upper portion  60  of the wrench assembly B advances the gear  100  clockwise. This is because, on the clockwise stroke applied to the upper portion  60 , the housing drum  64  and the inner retaining disk  62  rotate clockwise, and the arm  102   b  moving therewith engages the teeth  100   b  on the outer diameter of the gear  100  and the gear  100  is rotated clockwise. On the counterclockwise stroke applied to the upper portion  60 , the housing drum  64  and the inner retaining disk  62  rotate counterclockwise, but the arm  102   b  moving therewith does not engage the teeth  100   b  on the outer diameter of the gear  100  and the gear  100  does not rotate. Rather, on the counterclockwise stroke, the arm  102   b  is free to deflect about its pivot point against the biasing force of the spring  104   b , and so, the teeth  100   b  on the outer diameter of the gear  100  deflect the arm  102   b  (rather than engage with it) as the arm  102   b  is dragged across them. 
     Please note, FIG. 8B shows the cam  106   b  deflecting the arm  102   a  thereby preventing it from engaging with the teeth  100   b  on the outer diameter of the gear  100 . Conversely, the position of the cam  106   b  as shown in FIG. 8B does not deflect the arm  102   b  thereby enabling it to selectively engage, depending on the direction of the stroke applied, with the teeth  100   b  on the outer diameter of the gear  100 . 
     As described later herein, the rotation of the gear  100  and/or a torque associated therewith is transferred and/or applied to the extension rod  90  via a slip clutch output drive gear  108 . Accordingly, in this manner, the wrench&#39;s ratchet assembly allows a user to drive the extraction rod  90  in either selected direction of rotation using a continuous ratcheting motion to selectively tighten or loosen the bolt  10 . 
     The combination of the ratchet slip clutch gear  100  and the slip clutch output drive gear  108  serves as a torque limiter to prevent an over application of torque to the bolt  10  which may potentially damage the same. The gear  100  preferably has a symmetrically oriented, beveled, angular, inner radial, gear tooth pattern  100   a  on its transaxial face that abuts and mates with the transaxial face of gear  108  having a corresponding gear tooth pattern  108   a . The transaxial faces of the gears  100  and  108  are compressed or biased together by a slip clutch compression spring  110 . Preferably, the spring  110  is a standard compression spring that is compressed between a fixed interior lateral ledge or annular lip within the housing drum  64  and the slip clutch output drive gear  108 . The compressed spring  110  urges or presses the ratchet and slip clutch gear  100  and the slip clutch output drive gear  108  together with a predetermined compressive force. When the compressive force is exceeded, the gears  100  and  108  will slip and rotate independently from one another. 
     The drive gear  108  preferably has a square or otherwise keyed center hole which receives a square or otherwise keyed portion  90   c  of the extraction rod  90  such that they are rotationally fixed with respect to one another. Therefore, the rotational movement and/or torque experienced by the drive gear  108  is transferred to the extraction rod  90 , and in turn, the bolt  10  when it is engaged with the extraction rod  90 . 
     When the barrel plug assembly A is being installed in a gun barrel&#39;s bore by applying a continuous ratcheting motion to the upper portion  60  of the wrench assembly B with the selector lever  106   a  in the bolt tightening position, both the ratchet slip clutch gear&#39;s and the slip clutch output drive gear&#39;s teeth  100   a  and  108   a , respectively, will slip when a maximum allowable torque is exceeded. Accordingly, the torque applied to or experienced by the bolt  10  is limited. The limited torque will prevent the bolt  10  from being over tightened, which could undesirably damage the bolt&#39;s threads  10   a , bushing  10   c  and/or head  10   b . Additionally, a user installing the safety device will not have to worry if the barrel plug assembly A has been properly secured in the gun barrel&#39;s bore. This is because when the gears  100  and  108  slip between each other, they preferably make a clicking sound to indicate that the proper torque has been applied. This clicking sound is made when the mating, symmetrically oriented, beveled, and angular inner radial gear teeth  100   a  and  108   a , slip and slide over their 90 degree vertical ledges, located along the apex of each of the gear&#39;s teeth. 
     When a user applying a continuous ratcheting motion to the upper portion  60  of the wrench assembly B with the selector lever  106   a  in the bolt loosening position to remove the barrel plug assembly A from the gun barrel&#39;s bore, the ratchet slip clutch gear  100  and the slip clutch output drive gear  108  automatically lock together. The automatic locking is achieved by using a 90 degree vertical ledge, located along the apex of each of the symmetrical oriented, beveled, and angular inner radial gear teeth. Essentially, the abutting transaxial faces of the gears  100  and  108  have mating ramped teeth  100   a  and  108   a  which form a one-way slip clutch which will not slip when the relative rotation therebetween is in a first direction, and which will slip if a predetermined torque is exceeded when the relative rotation is in a second direction opposite the first. When the gears  100  and  108  are rotated relative to one another such that their teeth  100   a  and  100   b  lock together or will not slip, the user will be able to apply as much torque/force as is needed to loosen the bolt  10  and stretch or elongate the barrel plug assembly A. 
     As already stated, in the center of the slip clutch output drive gear  108  is a square hole that is used as a guide and mount for the extraction rod  90 . This square hole is designed to slide over the extraction rod&#39;s square body  90   c . The two parts preferably have a slip fit tolerance, so that the extraction rod  90  can slide easily through the slip clutch output drive gear&#39;s square hole, with very little backlash/rotational movement. The slip clutch output drive gear  108  is used to transfer the output torque from the hand ratcheting wrench&#39;s slip clutch to the extraction rod  90 , while still allowing the extraction rod  90  to be extended and retracted from the hand ratcheting wrench assembly B. 
     Preferably, the hand ratcheting wrench B is used to install and remove the barrel plug assembly A, and without the hand ratcheting wrench B, the barrel plug assembly A cannot be properly installed or removed. When a user wants to install the barrel plug assembly A to secure their gun, they preferably perform the following steps. 
     The barrel plug assembly&#39;s flanged bolt-retaining plug  12  is slid into the lower handle mount  50  located on the bottom of the hand ratcheting wrench B, as shown in FIGS. 1A-1D. The appropriate key is inserted into the lock cylinder  80  located on the top of the housing cap  66 , and the lock cylinder housing  82  is unlocked by turning the lock cylinder  80  so that the locking lever  84  is disengaged from the slot  66   a  of the housing cap  66 .The user then push the lock cylinder housing  82  and the lock cylinder  80  down into the housing cap  66  so that the extraction rod  90  is pushed into the extended position and engages with the bolt  10 . The user now turns the lock cylinder  80  so that the locking lever  84  will engage with slot  66   b  of the housing cap  66 , and preferably removes the key. This locks the extraction rod  90  in the extended position. Note: when the above steps are properly completed, the extraction rod  90  will engage with the bolt  10 . 
     The user inserts the barrel plug assembly A, that is now connected to the hand ratcheting wrench B, into the muzzle of the gun. Preferably, the plug assembly A is inserted all the way until the flange  12  is flush with the end of the barrel, as shown in FIGS. 6A-6E. If not already there, the ratchet arm selector  106  is shifted into the locking or tightening position using the selector lever  106   a . While holding the lower handle mount  50  in one hand, the upper portion  60  of the wrench B is rotate using a continuous ratcheting motion of alternating clockwise and counterclockwise strokes. The ratchet assembly makes the installation of the barrel plug assembly A quick and easy. 
     The ratcheting rotation of the upper portion  60  of the wrench assembly B advances the ratchet slip clutch gear  100  in the clockwise direction thereby applying rotation and/or torque to the slip clutch output drive gear  108 , which, in turn, is transferred to the extraction rod  90  and the bolt  10  engaged therewith. The rotation of the bolt  10  pulls the threaded rear compression base  16  (and the screw on expansion tube adapter  18 , if used) and the flanged bolt-retaining plug  12  together thereby longitudinally compressing the expansion tube  14  (and the slide-on expansion tube  20 , if used). Longitudinally compressing the expansion tubes  14  and  20  causes them to radially bulge and/or push against the walls in which each is contained, be it the gun barrel bore or the inner bore of the slide-on expansion tube  20 . In this manner, the plug assembly A becomes wedged inside of the gun&#39;s barrel, thereby securing the barrel plug assembly A in the gun barrel. Preferably, the user continues ratcheting the wrench assembly B until the biasing force of the compression spring  110  is overcome and the gears  100  and  108  slip past one another. A “clicking” sound is heard when the two gears  100  and  108  slip and rotate between each other signifying that the barrel plug assembly A has been fully tightened. If a clicking sound is not heard from the slip clutch gears  100  and  108 , the plug assembly A has not been fully tightened and ratcheting of the wrench B should continue. 
     Once fully tightened, the user reinserts the key in the lock cylinder  80  (if not still in the same), and unlocks the lock cylinder housing  82  by turning the lock cylinder  80  so that the locking lever  84  disengages from slot  66   b  of the housing cap  66 . The user then allows the compression spring  92  to push the extraction rod  90  up into the retracted position and the lock cylinder housing  82  and the lock cylinder  80  into the undepressed position. Turning the lock cylinder  80  so that the locking lever  84  engages with slot  66   a  of the housing cap  66  and removing the key, locks the push lock in the undepressed position and the extraction rod  90  in the retracted position to prevent tampering and/or use by an unauthorized individual. 
     The hand ratcheting wrench assembly B may now be slid away from the flanged bolt-retaining plug  12  while the plug assembly A remains properly installed in the barrel, as shown in FIGS. 5A-5E and  7 . Preferably, the entire installation procedure can be easily completed in less than one (1) minute. 
     When an authorized user wants to remove the barrel plug assembly A from a gun&#39;s barrel to operate the gun or otherwise, they preferably perform the following steps. 
     The lower handle mount  50 , located on the bottom of the hand ratcheting wrench assembly B, is slid onto the flange  12   b  of the flanged bolt-retainer plug  12  (as shown in FIGS.  6 A- 6 E), the appropriate key is inserted into the lock cylinder  80 , located on the top of the housing cap  66 , and the lock cylinder housing  82  is unlocked by turning the lock cylinder  80  so that the locking lever  84  is disengaged from the slot  66   a  of the housing cap  66 .The user then push the lock cylinder housing  82  and the lock cylinder  80  down into the housing cap  66  so that the extraction rod  90  is pushed into the extended position and engages with the bolt  10 . The user now turns the lock cylinder  80  so that the locking lever  84  will engage with slot  66   b  of the housing cap  66 , and preferably removes the key. This locks the extraction rod  90  in the extended position. Note: when the above steps are properly completed, the extraction rod  90  will engage with the bolt  10 . 
     If not already there, the ratchet arm selector  106  is shifted into the unlocking or loosening position using the selector lever  106   a . While holding the lower handle mount  50  in one hand, the upper portion  60  of the wrench B is rotate using a continuous ratcheting motion of alternating clockwise and counterclockwise strokes. The ratchet assembly makes the removal of the barrel plug assembly A quick and easy. 
     The ratcheting rotation of the upper portion  60  of the wrench assembly B advances the ratchet slip clutch gear  100  in the counterclockwise direction thereby applying rotation and/or torque to the slip clutch output drive gear  108 , which, in turn, is transferred to the extraction rod  90  and the bolt  10  engaged therewith. The rotation of the bolt  10  pushes the threaded rear compression base  16  (and the screw on expansion tube adapter  18 , if used) and the flanged bolt-retaining plug  12  apart thereby longitudinally stretching the expansion tube  14  (and the slide-on expansion tube  20 , if used). Longitudinally stretching the expansion tubes  14  and  20  causes them to radially contract. In this manner, the plug assembly A becomes unwedged from inside of the gun&#39;s barrel, thereby freeing it to be readily removed from the same. Preferably, the plug assembly A is slid or pulled from the gun barrel plug while still connected to the hand ratcheting wrench assembly B. 
     Preferably, to remove the hand ratcheting wrench B from the extracted gun barrel plug assembly A, the user reinserts the key in the lock cylinder  80  (if not still in the same), and unlocks the lock cylinder housing  82  by turning the lock cylinder  80  so that the locking lever  84  disengages from slot  66   b  of the housing cap  66 . The user then allows the compression spring  92  to push the extraction rod  90  up into the retracted position and the lock cylinder housing  82  and the lock cylinder  80  into the undepressed position. Turning the lock cylinder  80  so that the locking lever  84  engages with slot  66   a  of the housing cap  66  and removing the key, locks the push lock in the undepressed position and the extraction rod  90  in the retracted position to prevent tampering and/or use by an unauthorized individual. 
     The hand ratcheting wrench assembly B may now be slid away from the flanged bolt-retaining plug  12  thereby separating it from the plug assembly A. Preferably, the entire removal or de-installation procedure can be easily completed in less than one (1) minute. 
     Preferably, the extraction rod  90  is formed or made from a suitably strong, hard, rigid and/or durable material, such as, hardened steel or other metal or like material. The bolt engaging end of the extraction rod&#39;s shaft and/or the socket  90   b  preferably have a 0.140 inch outer diameter. When the hand ratcheting wrench assembly B is used to install the barrel plug assembly A, the small diameter socket  90   b  is extend out past the hand ratcheting wrench assembly&#39;s lower handle mount  50 . It centers itself within the very confined space of the flanged bolt-retaining plug  12  and mates up with the head  10   b  of the bolt  10 . The extraction rod&#39;s socket  90   b  and 0.140 inch outer diameter shaft preferably have close slip fit tolerances. These close slip fit tolerances enable the flanged bolt-retaining plug  12  and the bolt  10  to mate/slide together with the extraction rod&#39;s socket  90   b  and 0.140 inch outer diameter shaft, with very little backlash or deviation from the center line or z axis. 
     In relationship to the socket  90   b , the extraction rod  90  has a, preferably, flat 0.750 inch outer diameter, flange or head  90   a  that is located on the opposite end. This flange or head  90   a  mates with and/or abuts the bottom end  82   a  of the lock cylinder housing  82 . The flange or head  90   a  permits the extraction rod  90  to rotate and move up and down within the hand ratcheting wrench assembly B, while securing the rod  90  so that it cannot be forcibly removed from the assembly B. 
     The lock cylinder housing  82  is used as a plunger, which when pushed into the housing cap  66  extends the extraction rod  90 , as shown in FIGS. 3C and 3D. Its position controls what position the extraction rod  90  is in. The housing is used to hold and align the lock cylinder  80  and the extraction rod  90 , while the entire push lock assembly moves/slides up and down within the housing cap  66 . The lock cylinder  80  is used to manually lock the lock cylinder housing  82  in the selected position. When the lock cylinder housing  82  is in the “up” or undepressed position, it preferably protrudes above the housing cap  66 , indicating that the extraction rod  90  is in the retracted position, as shown in FIG.  3 B. When the lock cylinder housing  82  is in the “down” or depressed position, it is preferably flush with the top of the housing cap  66 , indicating that the extraction rod  90  is in the extended position, as shown in FIGS. 3C and 3D. The lock cylinder housing  82  preferably has a recessed blind hole located in the bottom end  82   a  thereof so that the extraction rod&#39;s flat 0.750 inch outer diameter flange or head  90   a  will fit into the same. The mating of these two parts keeps the extraction rod  90  in alignment while the extraction rod  90  is rotating and moving up and down within the hand ratcheting wrench assembly B. 
     Preferably, the housing cap  66  has the two parallel 90 degree slots  66   a  and  66   b  located in an outside wall of the housing cap&#39;s lock cylinder housing&#39;s bore. These two slots are used as locking points for the lock cylinder housing  82 . The lock cylinder housing  82  and the extraction rod  90  can be locked into the undepressed and the retracted positions, respectively, when the locking lever  84  is slid/rotated into the housing cap&#39;s upper slot  66   a , located relatively nearer the top of the cap&#39;s curved surface. The lock cylinder housing  82  and the extraction rod  90  can be locked into the depressed and the extended positions, respectively, when the locking lever  84  is slid/rotated into the housing cap&#39;s lower slot  66   b , located relatively nearer the flat bottom of the housing cap  66 . The location and arrangement of the locking slots  66   a  and  66   b  ensure that when the push lock is properly lock into one of the two positions, the extraction rod  90  has been fully retracted or extended. 
     Preferably, the housing cap  66  and housing drum  64  are ergonomically shaped such that when the user places the hand ratcheting wrench assembly B in their hand, the palm of their hand will comfortably and easily mold around the curved top of the housing cap  66  while their fingers rest comfortably on the cylindrical surface of the housing drum  64 . This ergonomic fit enables the user to quickly, comfortably, and with a minimal amount of force, selectively install or remove the barrel plug assembly A from any gun barrel. 
     The hand ratcheting wrench assembly&#39;s housing drum  64  isolates the upper portion  60  from the lower handle mount  50 . Both of these subassemblies are isolated so that when any of the subassembly&#39;s parts are compressed, moved or rotated, these parts will not adversely affect the operation of the other parts. An example of this is when the lock cylinder housing  82  and the extraction rod  90  are locked in depressed and the extended positions, respectively, the compression spring  92  will be compressed. If the housing drum  64  is not compartmentalized, the extraction rod  90  and the compression spring  92  will push against the already compressed slip clutch compression spring  110 . This increase and/or variation in the spring&#39;s  110  compression force, will adversely affect the operation of the slip clutch, by increasing the amount of torque that is required to make the slip clutch slip. The compressed slip clutch compression spring  110  should always exert the same compression force on the ratchet slip clutch gear  100  and the slip clutch output drive gear  108  so that they will be forced together and always slip at a constant preset torque. 
     The housing drum  64  is the main rotating body of the hand ratcheting wrench assembly B. This housing drum  64  fastens onto and rotates around the lower handle mount  50 , while holding and/or housing all of the subassemblies of the wrench assembly B. The housing drum  64  enables the hand ratcheting wrench assembly B to have overall rotational movement with respect to the lower handle mount  50 , and at the same time, enable its internal components/subassemblies to move in determined independent linear and rotational directions. 
     The invention has been described with reference to the preferred embodiments. However, certain modifications and alterations are contemplated. In one instance, it is contemplated that the wrench assembly B could be automated, for example, with a small battery operated DC reverse polarity motor. In another instance, it is contemplated that wrench assembly B and the barrel plug assembly A could be permanently joined, for example, by affixing the flange  12   b  to the lower handle mount  50  or by forming the flanged bolt-retaining plug  12  and the lower handle mount  50  as single piece. In either case, if the wrench assembly B was forcibly tampered with, the flange bolt retaining plugs&#39; flange  12   b  (which is now joined to or part of the lower handle mount  50 ) would still break-away at gap  12   b ′ leaving the rest of the plug assembly A securely installed in the guns&#39; barrel. Obviously, other modifications and alterations will occur to others upon reading and understanding the preceding detailed description. It is intended that the invention be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.