Sling and accessory attachment system

An improved sling and accessory attachment system for use on a firearm, camera and similar objects. The sling and accessory attachment system is comprised of a fitted, flush mounted anchor and removable external attaching members, one removable external attaching member fitted with a pivotal loop for attaching a sling or strap and another removable external attaching member capable of receiving a bipod or other accessory. The anchor receives and holds the removable external attaching member which is then rotated to a fixed stop and positively locked in place by a slideable pin. The removable external attaching member is quickly connected and quickly disconnected from the anchor.

BACKGROUND OF THE INVENTION 
This invention relates generally to a sling attachment device and more 
specifically to a new and novel sling and accessory attachment system. The 
new and novel sling and accessory attachment system is designed to be used 
with a variety of objects that are carried by a sling or carry strap such 
as firearms, cameras, and similar objects. The new and novel sling and 
accessory attachment system is also designed to allow attachment of a 
bipod, tripod and other accessories to an object such as a firearm or 
camera. 
On prior art firearms, such as rifles and shotguns, there are spaced apart 
attachment points, commonly known as gun sling swivels, used for attaching 
a sling or carry strap, which are positioned in the gun stock, on single 
piece stocks, at a position near the barrel on the bottom of the forearm 
and at a second position on the rearward portion on the bottom of the 
stock near the butt. In two part stocks, the sling attachment is placed at 
the lower rearward position of the butt stock and at a forward position on 
the magazine or attached to the barrel. A sling or carry strap is threaded 
through loop portions of prior art sling attachment devices and extends 
from one to the other and rejoins itself with a clasp or buckle to form a 
secured unit. Accessories, primarily bipods, are attached to the forearm 
or forward end of the firearm and are used in steadying a firearm during 
shooting, or as a portable stand when the firearm is not in use. 
While there are a wide variety of gun sling swivels, and variations of gun 
sling swivels as illustrated in the U.S. Pat. No. 4,841,658, design 
problems in these types of gun sling swivels present several 
disadvantages. Protruding posts that extend above the surface of a gun 
stock scratch and disfigure shooting rests, furniture, and other surfaces. 
Specialized tools have made installation of these prior art gun sling 
swivels impractical for the average person to self install and are 
relatively expensive to purchase. Some of the more common types of prior 
art gun sling swivels involve several moving parts resulting in noisy 
joints and swivel parts that fall against gun stock surfaces causing 
blemishes. In some cases, other prior art systems have become 
inadvertently disconnected or are incompletely connected causing a gun to 
fall, creating a dangerous situation. By design, some other systems are 
nearly impossible to remove without causing severe damage to the gun stock 
or to the swivel itself and others are known for cracking the finish and 
splitting the gun stock. 
SUMMARY OF THE INVENTION 
To overcome the before described considerations and problems inherent in 
and encountered with prior art swivel attachments, there is provided by 
the subject invention a unique detachable sling and accessory attachment 
system that quickly and easily connects and disconnects allowing the user 
to utilize slings and other accessories, such as bipods, with a prior art 
object such as a rifle, shotgun or camera. The new and novel sling and 
accessory attachment system is also designed to be securely locked in 
place on the prior art object. Additionally, the new and novel sling and 
accessory attachment system is further designed to be easily installed 
into or removed from a firearm stock or other object without special 
tools. 
The new and novel sling and accessory attachment system is comprised of two 
basic members. An anchor means, which is attached to a gun stock or other 
device, is seated flush with the gun stock surface and is internally 
formed to receive, and lock in place, a removable external attaching 
member. The attaching member has formed thereon a pilot shaft for guiding 
and locating the attaching member in the anchor means and a locking lug 
which locks the attaching member in an inner radial channel formed within 
the anchor means. The removable attaching member also houses a clevis pin 
which locks the attaching member and the anchor means together as a unit 
by sliding a clevis pin bolt through a first bore in the anchor means and 
into a hole formed in the locking lug of the attaching member. The clevis 
pin can be retracted into an unlocked position allowing the removable 
attaching member to rotate to a disengaged position where it can be 
removed from the anchor means, leaving the anchor means flush with the 
surface of a gun stock without protruding posts that can snag or scratch 
contacted surfaces. 
The removable attaching member also has formed therein loop or accessory 
bores that pivotally accept a loop for holding a sling or an accessory. In 
another embodiment a modified removable attaching member has an accessory 
adapter seat formed on the sides of the modified attaching member. The 
accessory adapter seat compliments the loop or accessory bores and allows 
the modified attaching member to be interchangeable and inter-functional 
with the attaching member and anchor means while allowing the sling and 
accessory attachment system to be utilized with a variety of accessories 
such as bipods, tripods and other accessories. 
The new and novel sling and accessory attachment system is also designed 
for ease of installation and removal. Since the relative size and form of 
the new and novel sling and accessory attachment system is smaller and is 
provided with a seating surface and threaded shank, commonly available 
tools can be used to install or remove the new and novel sling and 
accessory attachment system, negating the need for expensive professional 
fitting, specialized equipment or cementing the sling and accessory 
attachment system in place. For example, removal of the new and novel 
invention sling and accessory attachment system for refinishing a gun 
stock of a firearm is accomplished by simply turning it out of the gun 
stock. This feature negates the need for high heat or machining to remove 
the swivel as required by some prior art devices. 
Additionally, the new and novel sling and accessory attachment system is 
compact, with formed outer surfaces, which result in reduced weight and 
fewer moving parts. Pre-formed and finished surfaces eliminate secondary 
contouring and subsequent plating requirements. Compactness is 
accomplished by eliminating additional linkages resulting in the 
elimination of sources of undesirable noise and additional weight. 
To achieve the foregoing and other advantages, the present invention 
provides a new and detachable novel sling and accessory attachment system 
that quickly and easily connects and disconnects, can be securely locked 
in place and is easily installed and removed. The present invention is 
also further designed to be compact and lightweight. 
The more important features of the present invention have been broadly 
outlined in order that the detailed description thereof that follows may 
be better understood and in order that the present contribution to the art 
may be better appreciated. There are additional features of the invention 
that will be more fully described hereinafter and which, together with the 
features outlined above, will form the subject matter of the claims 
appended hereto. Those skilled in the art will appreciate that the 
conception, upon which the present disclosure is based, may readily be 
utilized as a basis for the designing of other structures, methods and 
systems for carrying out the several purposes of the present invention. It 
is important, therefore, that the claims be regarded as including such 
equivalent construction insofar as they do not depart from the spirit and 
scope of the present invention. 
Further, the purpose of the foregoing abstract is to enable the U.S. Patent 
and Trademark Office and the public generally, and especially the 
scientists, engineers and practitioners in the art who are not familiar 
with patent or legal terms or phraseology, to determine quickly from a 
cursory review the nature and essence of the technical disclosure of the 
application. The abstract is neither intended to define the invention of 
the application, which is measured by the claims, nor is it intended to be 
limiting as to the scope of the invention in any way. 
Accordingly, it is an object and advantage of the invention to provide a 
new and novel sling and accessory attachment system that quickly and 
easily connects and disconnects. 
Another object and advantage of the invention is to provide a new and novel 
sling and accessory attachment system that may be used with a variety of 
slings, accessories and other attachments. 
Another object and advantage of the invention is to provide a new and novel 
sling and accessory attachment system that securely locks in place. 
Another object and advantage of the invention is to provide a new and novel 
sling and accessory attachment system that is compact and lightweight. 
Another object and advantage of the invention is to provide a new and novel 
sling and accessory attachment system that reduces undesirable noise. 
Another object and advantage of the invention is to provide a new and sling 
and accessory attachment system that is easily installed and removed. 
Another object and advantage of the invention is to provide a new and novel 
sling and accessory attachment system that is interchangeable and 
inter-functional. 
Still another object and advantage of the invention is to provide a new and 
novel sling and accessory attachment system which may be easily and 
efficiently manufactured and marketed. 
Yet another object and advantage of the invention is to provide a new and 
novel sling and accessory attachment system which is of durable and 
reliable construction. 
These and other objects and advantages will become apparent from review of 
the drawings and from a study of the Description of the Preferred 
Embodiment relating to the drawings which has been provided by way of 
illustration only.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring to the drawings in general, the present description is given in 
the context of the new and novel sling and accessory attachment system as 
utilized with a prior art firearm. It will be readily apparent to those 
skilled in the art that the usefulness of the present invention is not 
limited to this application and that changes could be made in construction 
and should be considered to be within the spirit and scope of the present 
invention. 
Referring now in particular to FIG. 1 of the drawings, there is shown the 
new and novel sling and accessory attachment system, shown generally by 
the numeral 22, in position on a prior art firearm shown generally by the 
numeral 24. A typical prior art firearm 24 may have a stock 26, an action 
28, a barrel 30 and a sling 32. The prior art firearm 24 is shown in the 
Preferred Embodiment and in FIG. 1 of the drawings for purposes of 
illustration only. The new and novel sling and accessory attachment system 
22 has been designed to be utilized with a variety of prior art objects 
such as firearms, cameras, and similar objects. 
Referring now to FIG. 2 of the drawings there is shown a sectioned side 
view of the new and novel sling and accessory attachment system 22 in 
position on a prior art firearm 24. FIG. 2 illustrates the positioning and 
orientation of the attachment system 22 in the substrate of the stock 26, 
the foremost and rearmost portions of the stock 26 having been removed for 
purposes of clarity. The sling and accessory attachment system 22 is 
medially located on an underside of the stock 26, a portion of the 
attachment system 22 being embedded in the stock 26. 
Referring now to FIG. 3 of the drawings there is shown a front view of the 
new and novel sling and accessory attachment system 22. The attachment 
system 22 illustrated in FIG. 3 of the drawings is in a closed and locked 
position. The attachment system 22 has an attaching member, shown 
generally by the numeral 34, removably attached to an anchor means, shown 
generally by the numeral 36. Anchor means 36 removably engages retaining 
means 38 in the direction of the arrow 40. The retaining means 38 is 
embedded into the stock 26 of a typical prior art firearm 24, the stock 26 
and the prior art firearm 24 not shown in FIG. 3 of the drawings for 
purposes of clarity. Similarly, the retaining means 38 may be embedded in 
a suitable portion of a camera and similar objects, also not shown in FIG. 
3 of the drawings. In the Preferred Embodiment, the retaining means 38 is 
a threaded nut as shown in FIG. 3. In another embodiment, the retaining 
means 38 is integrally formed as part of a body of an object, such as the 
stock 26 of a prior art firearm 24, or, in the case of a camera, formed in 
the body of the camera. For example, the retaining means 38 may be a 
threaded bore formed in the stock 26 of a prior art firearm 24 or a 
threaded bore formed in the body of a camera. Other retaining means known 
in the art may also be used and are considered to be within the spirit and 
scope of the present invention. 
Anchor means 36 has retaining means engaging member 42 longitudinally and 
distally formed on anchor head portion 44. The anchor head portion 44 of 
the anchor means 36 has seating face surface 46 formed on an outer 
perimeter of the anchor head portion 44 near the retaining means engaging 
member 42. In the Preferred Embodiment, the retaining means engaging 
member 42 is threaded and has been designed to removably engage the 
retaining means 38, thereby removably securing the anchor means 36 to the 
retaining means 38 and thus, removably securing the anchor means 36 to the 
stock 26 of a prior art firearm 24, the prior art firearm 24 not shown in 
FIG. 3 of the drawings for purposes of clarity. Other engaging members 
known in the art, which will securely and removably engage various types 
of retaining means 38 known in the art, may also be used and are 
considered to be within the spirit and scope of the present invention. 
Attaching member 34 also has an attaching head portion 48, the attaching 
head portion 48 of the attaching member 34 being designed to dock with the 
anchor head portion 44 of the anchor means 36 as will be discussed more 
fully hereinafter. Loop 50 is movably mounted in the attaching head 
portion 48 of the attaching member 34. A clevis pin, shown generally by 
the numeral 52, is centrally and longitudinally disposed through the 
attaching head portion 48 of the attaching member 34. The loop 50 and the 
clevis pin 52 will be discussed more fully hereinafter. 
Referring now to FIG. 4 of the drawings there is shown an exploded front 
view of the new and novel sling and accessory attachment system 22. The 
attachment system 22 illustrated in FIG. 4 of the drawings is in an opened 
and unlocked position. Anchor means 36 and attaching member 34 are engaged 
and disengaged in the direction of the arrows 54 and 56 respectively. 
Crown 58 is formed on attaching head portion 48 of the anchor means 36 
opposite seating face surface 46 and has been designed to lie flush with 
the stock 26 surface of a prior art firearm 24, not shown in FIG. 4 but 
clearly seen in FIGS. 1 and 2 of the drawings. Referring briefly to FIGS. 
11 and 12, it can be seen that the crown 58 of the anchor means 36 does 
not protrude above the surface of the gun stock 26 of the prior art 
firearm 24, thereby eliminating "snag surfaces". The retaining means 
engaging member 42 is designed to pull the seating face surface 46 of the 
anchor means 36, and thus the anchor means 36 itself, tightly against the 
stock 26 of the prior art firearm 24 as shown in FIGS. 11 and 12. Once the 
anchor means 36 is removably secured in the stock 26 of the prior art 
firearm 24, the attaching member 34 can be inserted to complete the sling 
and accessory attachment system 22 as shown in FIGS. 9 and 10. 
Referring back to FIG. 4 of the drawings, there is shown a skirt 60 formed 
around the perimeter of the attaching head portion 48 of the attaching 
member 34 and opposite the loop 50. The skirt 60 has been designed to dock 
with the crown 58 of the anchor means 36 and to shield the inner 
components of the sling and accessory attachment system 22. A main shaft 
62 is centrally formed on the attaching head portion 48 of the attaching 
member 34 opposite the loop 50, the main shaft 62 being centrally located 
within skirt 60. Locking lug 64 is formed on the main shaft 62 and pilot 
shaft 66 is formed on locking lug 64, the pilot shaft 66 being an integral 
part of the main shaft 62 and extending beyond the locking lug 64. Clevis 
pin 52 is also shown in FIG. 4 of the drawings, the clevis pin 52 being 
shown in an extended, unlocked position. 
Referring now to FIG. 5 of the drawings there is shown an end view of the 
attaching member 34, taken along lines 5--5 of FIG. 4 of the drawings. 
FIG. 5 shows the configuration of skirt 60 around the perimeter of the 
attaching head portion 48 of the attaching member 34 and the configuration 
of locking lug 64. In the Preferred Embodiment, the locking lug 64 has 
been designed having opposing flanges or wings. Other designs and other 
locking lug configurations known in the art may also be used and are 
considered to be within the spirit and scope of the present invention. A 
portion of the locking lug 64 has a bore or hole 68 formed therein, the 
hole 68 being designed to receive a portion of clevis pin 52, the clevis 
pin 52 not shown in FIG. 5 for purposes of clarity. The disposition of the 
clevis pin 52 through the hole 68 of the locking lug 64 will be discussed 
more fully hereinafter. 
Referring now to FIG. 6 of the drawings there is shown an end view of the 
anchor means 36, taken along lines 6--6 of FIG. 4 of the drawings. Locking 
lug receiving window 70 is centrally and longitudinally formed in anchor 
head portion 44 of anchor means 36. Locking lug retaining means 72 and 74 
are integrally formed from crown 58 on either side of the locking lug 
receiving window 70 and have been designed to retain locking lug 64 in the 
anchor head portion 44 of the anchor means 36. Pilot shaft bore 76 is 
centrally located at the bottom of the locking lug receiving window 70 
within anchor head portion 44 of the anchor means 36. The pilot shaft bore 
76 guides the pilot shaft 66 and the attaching member 34 into the proper 
position in the anchor means 36, the pilot shaft 66 and the attaching 
member 34 are not shown in FIG. 6 for purposes of clarity. 
First bore 78 is formed through the anchor head portion 44 of the anchor 
means 36 and has been designed to receive a portion of the clevis pin 52. 
Rotational stop 100 is also shown in FIG. 6 of the drawings and is 
longitudinally oriented within the anchor head portion 44 of the anchor 
means 36. The disposition and function of clevis pin 52 and rotational 
stop 100 will be discussed more fully hereinafter. 
Referring now to FIG. 7 of the drawings there is shown an exploded side 
view of the sling and accessory attachment system 22. Attaching member 34 
is inserted into anchor means 36 in the direction of the arrow 54. The 
attaching member 34 is then rotated in the direction of the arrow 80 the 
anchor means 36 thereby removably engaging the attaching member 34. The 
clevis pin 50 can then be pushed into the attaching member 34 and, thus, 
into anchor means 36, thereby removably locking the attaching member 34 to 
the anchor means 36 and completing a fully engaged and locked attachment 
system 22. 
Referring now to FIG. 8 of the drawings there is shown a side view of a 
fully engaged but unlocked attachment system 22. Clevis pin 52 has not 
been fully pushed into the attachment system 22 in FIG. 8. FIG. 8 of the 
drawings illustrates the pivotally movable nature of the loop 50, 
alternate positions being shown in dot-dash lines for purposes of clarity. 
The loop 50 may be moved to any number of alternate positions and is not 
limited to those alternate positions shown in FIG. 8 of the drawings which 
are provided for purposes of illustration only. 
Referring now in general to FIGS. 9-12 of the drawings there are shown 
sectional views of a stock 26 of a prior art firearm 24 having a sling and 
accessory attachment system 22 attached thereto. FIG. 9 is taken along 
lines 9--9 of FIG. 2 of the drawings and FIG. 10 is taken along lines 
10--10 of FIG. 2 of the drawings. FIG. 11 is taken along lines 11--11 of 
FIG. 2 of the drawings and FIG. 12 is taken along lines 12--12 of FIG. 2 
of the drawings. 
FIGS. 9 and 10 illustrate the positioning of the anchor means 36 within the 
stock 26 of a prior art firearm and the orientation of the attaching 
member 34 to the anchor means 36 when the attaching member 34 is fully 
engaged by and locked into anchor means 36. FIGS. 9 and 10 also illustrate 
another embodiment of the retaining means 38 in which the retaining means 
38 is integrally formed as part of the stock 26 of a prior art firearm. In 
this embodiment, and as shown in FIGS. 9 and 10, the retaining means 38 is 
a threaded bore formed in the stock 26 of a prior art firearm. Other 
retaining means known in the art may also be used and are considered to be 
within the spirit and scope of the present invention. FIGS. 9 and 10 also 
show loop or accessory bores 82 formed in attaching head portion 48 of the 
attaching member 34. 
FIGS. 11 and 12 are sectional views similar to FIGS. 9 and 10 except that 
the attaching member 34 has been removed from the sling and accessory 
attachment system to illustrate how the crown 58 of the anchor means 36 
lies flush with the stock 26 of a prior art firearm. In the Preferred 
Embodiment, retaining means 38 is a threaded nut embedded in the stock 26 
of a typical prior art firearm as shown in FIG. 11 of the drawings. A 
counter-bore 84 may be present in the gun stock 26, the counter-bore 84 
allowing access to the retaining means 38 and to the retaining means 
engaging member 42 without interfering with the seating of a barrel 30 on 
a gun stock 26. Retaining means 38 may be similarly embedded in a suitable 
portion of a camera and similar objects on which the sling and accessory 
attachment system 22 may be used. 
Referring now in general to FIGS. 13-16 of the drawings there will be 
described in detail the inner components of the anchor means 36 and 
engagement of the attaching member 34 to the anchor means 36 of the sling 
and accessory attachment system 22. Referring now in particular to FIG. 
13, there is shown a plan view clevis pin 52. The clevis pin 52 has clevis 
pin bolt or bolt 86 and clevis pin arm or arm 88 oppositely formed on 
clevis pin handle or handle 90. Detent nose 92 is formed on arm 88 
opposite handle 90 of clevis pin 52. Clevis pin 52 is constructed to have 
a spring-like nature, the spring action being in the arched clevis pin 
handle 90 and exerting spring-like pressure toward bolt 86 such that 
detent nose 92 is urged toward bolt 86 of the clevis pin 52. 
Referring now to FIG. 14 of the drawings, there is shown the sling and 
accessory attachment system 22 in an engaged, unlocked position. FIG. 14 
is sectional view taken along lines 14--14 of FIG. 8 of the drawings. The 
loop 50 is not shown in FIG. 14 for purposes of clarity. Locking lug 
retaining means 72 and 74 are formed in the anchor head portion 44 of the 
anchor means 36, the locking lug retaining means 72 and 74 having locking 
lug seat surfaces 94 and 96 opposite crown 58. Inner radial channel 98 is 
formed in the anchor head portion 44 of the anchor means 36, the inner 
radial channel 98 being generally circular in shape and concentric to the 
outer circumference of the anchor head portion 44 of anchor means 36. The 
inner radial channel 98 is positioned between locking lug retaining means 
72 and 74 and that portion of the anchor head portion 44 which lies 
adjacent to the opening of the pilot shaft bore 76. Stated another way, 
the inner radial channel 98 lies between the locking lug retaining means 
72 and 74 and the pilot shaft bore 76. The inner radial channel 98 has 
been designed to receive the locking lug 64 of the attaching member 34 and 
has also been designed to allow the locking lug 64 to rotate within the 
anchor head portion 44 of the anchor means 36. 
Rotational stop 100, shown in dashed lines for purposes of clarity, is 
positioned in the inner radial channel 98 providing a contact point for 
the locking lug 64. The rotational stop 100 is positioned so that the 
locking lug 64 will be perpendicularly oriented to the locking lug 
receiving window 70 when locking lug 64 contacts the rotational stop 100. 
Thus, the locking lug 64 of the attaching member 34 is retained within 
inner radial channel 98 of the anchor means 36 between the locking lug 
retaining means 72 and 74 and that portion of the anchor head portion 44 
of the anchor means 36 which lies adjacent to the pilot shaft bore 76 
thereby engaging the attaching member 34 in the anchor means 36. 
Clevis pin 52 is shown in FIG. 14 of the drawings in an unlocked position. 
The clevis pin bolt or bolt 86 of clevis pin 52 is disposed in second bore 
102 in the attaching head portion 48 of attaching member 34. Clevis pin 
arm or arm 88 with detent nose 92 is oppositely disposed in guide slot 104 
in the attaching head portion 48 of attaching member 34. Guide slot 104 
has formed therein lock detent 106, lock stop 108, release detent 110 and 
release stop 112. In the unlocked position, as shown in FIG. 14, detent 
nose 92 of clevis pin 52 seats in release detent 110. Release stop 112 
limits release travel of the clevis pin 52 when the clevis pin 52 is 
pulled in the direction of the arrow 114 and prevents loss of the clevis 
pin 52 from the attaching member 34. Details of guide slot 104 are further 
illustrated in the enlarged view of FIG. 16 of the drawings, the view 
indicated by the dashed circle 116 in FIG. 14, and will be further 
discussed hereinafter. 
Referring now to FIG. 15 of the drawings, there is shown the sling and 
accessory attachment system 22 in an engaged, locked position. FIG. 15 is 
sectional view taken along lines 15--15 of FIG. 8 of the drawings. The 
loop 50 is not shown in FIG. 15 for purposes of clarity. In the locked 
position, the clevis pin handle or handle 90 is pushed in the direction of 
the arrow 118. This causes the clevis pin bolt or bolt 88 of clevis pin 52 
to enter first bore 78 in anchor head portion 44 of anchor means 36 and to 
enter hole 68 in locking lug 64, removably securing locking lug 64 in a 
locked position, thereby preventing rotation of locking lug 64 and 
disengagement of attaching member 34 from anchor means 36. Additionally, 
the clevis pin arm or arm 88 simultaneously moves detent nose 92 into lock 
detent 106 where detent nose 92 seats into lock detent 106, due to the 
spring like nature of clevis pin 52 as previously described, thereby 
removably securing clevis pin 52 in a locked position in the sling and 
accessory attachment system 22. Lock stop 108 prevents detent nose 92 from 
being pushed too far into attaching head portion 48 of attaching member 34 
and thus, properly seats detent nose 92 into lock stop 108. 
Clevis pin handle access 120 is formed in anchor head portion 44 of 
attaching member 34 so that the clevis pin handle or handle 90 is easily 
accessible. When the attaching member 34 is in an engaged and locked 
position, the clevis pin handle 90, which is accessible through the clevis 
pin handle access 120, is gripped and pulled in the direction of the arrow 
114 as shown in FIG. 14 of the drawings. This releases the locking lug 64 
and allows rotation of the attaching member 34, and of the locking lug 64, 
within the anchor head portion of anchor means 36. Since the rotation of 
the attaching member 34 aligns the locking lug 64 with locking lug 
receiving window 70, the attaching member 34 can then be removed from the 
anchor means 36. When the attaching member 34 is to be attached to the 
anchor means 36, the pilot shaft 66 followed by locking lug 64 and then by 
main shaft 62, is inserted into the anchor means 36 through the locking 
lug receiving window 70 and rotated until the locking lug 64 contacts the 
rotational stop 100, thereby aligning the hole 68 of the locking lug 64 
with the second bore 102 in the anchor head portion 44 of the anchor means 
36. The clevis pin handle 90 is then pushed into the clevis pin handle 
access 120 in the direction of the arrow 118, which simultaneously pushes 
the clevis pin bolt 86 through the first bore 78 of the anchor means 36 
and into the hole 68 of the locking lug 64, and which also simultaneously 
pushes the detent nose 92 of the clevis pin arm 88 into the lock detent 
106, thereby engaging and locking the attaching member 34 to the anchor 
means 36. 
Referring now to FIG. 16 of the drawings there is shown in detail the 
locking and releasing mechanism of the detent nose 92 of clevis pin 52 
within guide slot 104. FIG. 16 is an enlarged view of the guide slot 104 
shown in FIG. 14 by the dashed circle 116. Still referring to FIG. 16 of 
the drawings, there is shown detent nose 92 in an unlocked position, the 
detent nose 92 being seated in release detent 110 and held in place by the 
spring-like force of the clevis pin 52. Guide slot 104 has been designed 
to retain and guide arm 88 with detent nose 92 of clevis pin 52 within 
head portion 48 of attaching member 34. 
Referring now to FIG. 17 of the drawings there is shown a sectional view of 
the new and novel sling and accessory attachment system 22 taken along 
lines 17--17 of FIG. 8 of the drawings. Loop 50 and clevis pin 52 are not 
shown in FIG. 17 for purposes of clarity. Loop or accessory bores 82 are 
clearly shown in FIG. 17 of the drawings as well as loop stop 122. Loop or 
accessory bores 82 receive ends of a loop 50 or ends of other accessory 
attachments. Loop stop 122 is formed within attaching head portion 48 of 
attaching member 34 between loop bores 82 to hold ends of a loop 50 in 
position within the attaching head portion 48 while allowing pivotal 
movement of ends of a loop 50 within loop bores 82 and thus, allowing 
pivotal movement of a loop 50 about attaching head portion 48 of the 
attaching member 34. 
FIG. 17 of the drawings also illustrates and better defines the inner 
radial channel 98 formed within anchor head portion 44 of anchor means 36. 
In FIG. 17, the flanges or wings of locking lug 64 are perpendicular to 
the plane of the sectional view, and therefore not visible in this view, 
illustrating the open nature of the inner radial channel 98 in which the 
locking lug 64 rotates. 
Referring now to FIG. 18, there is shown a sectional view of anchor means 
36 taken along lines 18--18 of FIG. 3 of the drawings. FIG. 18 illustrates 
the position of locking lug 64 within the anchor head portion 44 of anchor 
means 36 when locking lug 64 is engaged in anchor means 36. In this 
position, locking lug 64 contacts rotational stop 100 and is perpendicular 
to locking lug receiving window 70, the locking lug receiving window 70 
shown in dashed lines for purposes of clarity. Hole 68, in locking lug 64, 
is in vertical alignment with first bore 78, the first bore 78 not seen in 
FIG. 18 but clearly shown in FIGS. 6, 14 and 15, thereby allowing clevis 
pin bolt 86 to be moved into hole 68, securing locking lug 64 from 
rotational movement. 
Referring now in general to FIGS. 19 and 20 of the drawings there will be 
described a modification of the sling and accessory attachment system 22 
which allows the new and novel invention to be used with a wide variety of 
accessories. Referring now in particular to FIG. 19 of the drawings, there 
is shown a side view of a modified attaching member 124. Accessory adapter 
seat 126 is formed on the sides of modified attaching member 124. 
Accessory adapter seat 126 compliments the loop or accessory bores 82 
found in the attaching member 34, the loop or accessory bores 82 and the 
attaching member 34 are not shown in FIG. 19 but are shown in FIGS. 17 and 
20 of the drawings. 
Still referring to FIG. 19 of the drawings, modified attaching member 124 
has a modified attaching head portion 128, the modified attaching head 
portion 128 having a clevis pin release side 130, a main shaft 62 formed 
opposite the side 130, locking lug 64 formed on the main shaft 62, and a 
pilot shaft 66 distally formed on the locking lug 64. The main shaft 62 
locking lug 64 and pilot shaft 66 of the modified attaching member 124 are 
the same as the main shaft 62, locking lug 64 and pilot shaft 66 of the 
attaching member 34 previously described. Accessory adapter seat 126 is 
formed on the modified attaching head portion 128 of the modified 
attaching member 124 and is parallel to and equidistant from the axis of 
the main shaft 62 and pilot shaft 66. In the Preferred Embodiment, and in 
FIG. 19 of the drawings, at least two accessory adapter seats 126 are 
formed on opposite sides of the modified attaching head portion 128 of the 
modified attaching member 124. Other numbers and configurations of 
accessory adapter seats known in the art may also be used and are 
considered to be within the spirit and scope of the present invention. 
Referring now to FIG. 20 of the drawings there is shown a front view of 
modified attaching member 124. Accessory adapter seat 126 is a flat 
surface formed in the modified attaching head portion 128 of the modified 
attaching member 124 having loop or accessory bores 82 centrally located 
and formed in the accessory adapter seat 126. Loop or accessory bores 82 
allow the modified attaching member 124 to be interchangeable and 
inter-functional with attaching member 34 and anchor means 36, attaching 
member 34 and anchor means 36 not shown in FIG. 20, while allowing the 
sling and accessory attachment system to be utilized with a variety of 
accessories such as bipods, tripods and other accessories. FIG. 20 also 
illustrates the disposition of bolt 86 of the clevis pin 52 through the 
modified attaching head portion 128 of the modified attaching member 124 
and through the locking lug 64, the disposition of the bolt 86 of the 
clevis pin 52 through the modified attaching head portion 128 being the 
same as the disposition of the bolt 86 through the attaching head portion 
48 of an attaching member 34. 
From the above it can be seen that the new and novel sling and accessory 
attachment system accomplishes all of the objects and advantages presented 
herein before. Nevertheless it is within the spirit and scope of the 
invention that changes in the basic sling and accessory attachment system 
may be made and the Preferred Embodiment and the modifications shown and 
described herein have only been given by way of illustration.