Rear gun sight device for AK47 or similar rifle

A rear gun sight device for a rifle having a receiver and cover, the receiver having a tee shaped slot on the top rear of the receiver. This slot is designed to accept and retain a recoil assembly. The invention replaces the rear portion of the recoil assembly allowing the invention to perform the function of the original rear portion of the recoil assembly as well as provide a rear sight for the rifle. This invention is comprised of a sight base provided with a tee shaped base to engage the tee shaped slot in the top rear trunion of the rifle's receiver, a spring boss to accept the end of the recoil spring when assembled in the recoil assembly, a spring guide to guide the recoil spring, a sight component assembly comprised of windage and elevation adjustment components as well as aperture sight components, and cover retention elements.

CROSS REFERENCE TO RELATED APPLICATIONS

Not applicable.

Not Applicable

DESCRIPTION OF ATTACHED APPENDIX

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FIELD OF THE INVENTION

This invention relates generally to the field of rear guns sight devices for rifles and more specifically to a rear gun sight device for a rifle having a receiver and cover, the receiver having a tee shaped slot on the top rear of the receiver.

BACKGROUND OF THE INVENTION

The AK47 rifle in its original configuration is equipped with a tangent notch sight mounted just forward of the rifles receiver approximately 10″ from the shooters eye. This results in a very short sight radius. Any misalignment of the front and rear sights using the short sight radius provided on the AK47 in it's original configuration results in large inaccuracies when engaging the intended target. One method of increasing the sight radius on a AK47 type rifle was employed by Israel Military Industries in Producing the Galil, a variant of the AK47 design adapted for the Israeli Military. The method was to use the receiver cover to mount a sight component assembly. This increased the sight radius, but was mounted to the receiver cover which is unstable for precision mounting a rear sight.

BRIEF SUMMARY OF INVENTION

This invention relates generally to the field of rear guns sight devices for rifles and more specifically to a rear gun sight device for a rifle having a receiver and cover, the receiver having a tee shaped slot on the top rear of the receiver. This slot is designed to accept and retain a recoil assembly. The invention replaces the rear portion of the recoil assembly. This allows the invention to perform the function of the original rear portion of the recoil assembly as well as provide a rear sight for the rifle. The novel rear gun sight device is especially adapted to the AK47 or similar type rifle. This rear gun sight device includes a sight base with a tee shaped base that engages the tee shaped slot in the rear portion of the AK47 receiver providing a stable base for the sight assembly to mount. By integrating the rear gun sight device into the recoil system of the AK47 rifle the rear gun sight device is able to utilize this tee shaped slot without restricting the function of the AK47's operating system. This invention provides the AK47 with an improved sight by increasing the sight radius by approximately eight inches. The original AK47 sight is of a tangent type and is mounted on the barrel ahead of the receiver, resulting in a very short sight radius. The shorter sight radius provided for in the original design of the rifle is more likely to cause human error when aligning sights to engage a target.

In accordance with a preferred embodiment of the invention, there is disclosed a rear gun sight device for a rifle having a receiver and cover, the receiver having a tee shaped slot on the top rear of the receiver. This slot is designed to accept and retain a recoil assembly. The invention replaces the rear portion of the recoil assembly. This allows the invention to perform the function of the original rear portion of the recoil assembly as well as provide a rear sight for the rifle. The rear gun sight device is comprised of a sight base with an integrated tee shaped base to engage the tee shaped slot in the top rear trunion of the rifle's receiver, a spring boss to accept the end of the recoil spring when assembled in the recoil assembly, a spring guide to guide the recoil spring, cover retention elements and sight component assembly comprised of windage and elevation adjustment components as well as sight elements attached directly to the sight base.

In accordance with a preferred embodiment of the invention, there is disclosed a rear gun sight device for a rifle having a receiver and cover, the receiver having a tee shaped slot on the top rear of the receiver. This slot is designed to accept and retain a recoil assembly. The invention replaces the rear portion of the recoil assembly. This allows the invention to perform the function of the original rear portion of the recoil assembly as well as provide a rear sight for the rifle. The rear gun sight device is comprised of a sight base with an integrated tee shaped base to engage the tee shaped slot in the top rear trunion of the rifle's receiver, a spring boss to accept the end of the recoil spring when assembled in the recoil assembly, a spring guide to guide the recoil spring, cover retention elements and sight component subassembly comprised of windage and elevation adjustment components as well as sight elements. This sight component subassembly is attached to the sight base by various means such as but not limited to screws, clamping or friction.

OBJECTS OF THE INVENTION

The primary object of the invention is provide an improved rear sight for the AK47 rifle or similar rifle.

Another object of the invention is to increase AK47 rifle's sight radius by approximately eight inches over the original tangent sight.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention is a rear gun sight device30as shown inFIG. 16for the AK47 or similar rifle60as depicted inFIG. 4, which is comprised of the following elements: a sight base21with integrated tee shaped base31as depicted inFIG. 12, a sight component assembly22, a spring guide33and receiver cover retention features40as shown inFIG. 16. This rear gun sight device will also be referred to as guide rod with integrated sight30in this detailed description of the preferred embodiments. The guide rod with integrated sight assembly30is made up of the following elements: a sight base21, that can be fabricated by various means, such as but not limited to casting, forging or machining; but casting is preferable. The sight base21can be made of various materials, such as but not limited to steel, aluminum, or polymeric compounds; steel is preferable, and is designed to replace the AK47's guide rod base24of the guide rod23in the recoil assembly25, as shown inFIGS. 8,11&12. To accomplish this, the sight base21is provided with a tee shaped base31, as depicted inFIG. 12, duplicating the machined base of the AK47's original guide rod base, as depicted inFIG. 11, that engages a tee shaped slot47, shown inFIGS. 1-3&4-6, cut into the top rear trunion of the AK47's receiver. The sight base will also provide a recoil spring boss32, allowing it to receive the end of the recoil spring26as shown inFIGS. 7-12. The sight base also provides for a spring guide33depicted inFIGS. 11 & 12. This spring guide33may be fabricated from material, such as but not limited to round stock, and material, such as but not limited to steel, aluminum or polymeric, steel is preferable, and attached to the sight base21as shown inFIGS. 11 & 12by various means, such as but not limited to inserting the spring guide33into mating holes33A machined or cast into the sight base21, and secured by various means, such as but not limited to assembly locking compounds, epoxies or friction as depicted inFIG. 17, or the spring guide may be integrated into the sight base itself by molding, machining or casting as one piece34as depicted inFIG. 15. Integrating the tee shaped base31, a spring boss32and a spring guide33features into the sight base21insures that the guide rod with integrated sight30will function the same as the original guide rod23when assembled in the AK47's recoil assembly29as shown inFIGS. 7,8,9&10. The sight base21is provided with additional features, such as but not limited to holes and relief cuts to allow for a sight component assembly22to include windage and elevation adjustment components, such as but not limited to screws37, compression springs38, leaf springs52, spring pins41, detent plungers39and detent drum45; and aperture sight components36as depicted inFIG. 16. It should be noted that the components mentioned in the sight component assembly may be directly mounted to the sight base21as shown inFIG. 16or assembled as a subassembly35and mounted to the sight base50by various means such as but not limited to screws51, clamping or friction as shown inFIG. 13. Mounting the sight assembly components directly to the sight base21is preferable. It shall be noted that the sight base21will be provided features such as but not limited to holes, indentations or formed raised bosses66as depicted inFIG. 18to provide for receiver cover retention elements. Yet another method is to provide holes in the sight base to mount the cover retention elements40consisting of compression springs42, cover engaging detent pins43and spring pins44as depicted inFIG. 14. The cover retention elements attached to the sight base, allow holes49in the receiver cover46to engage these retention elements40, securing the receiver cover46to the AK47 rifle60as shown inFIGS. 1-3&14. The cover is designed to work with the cover retention elements40provided on the sight base21. The design using engagement holes49previously described and shown inFIG. 14, is the preferred method. This receiver cover46replaces the original AK47 receiver cover48designed to function with the original guide rod23as depicted inFIGS. 4-6. This rear gun sight device referred to as guide rod with integrated sight30when integrated into the AK47 rifle's operating system increases the sight radius by approximately eight inches over the original tangent sight65as depicted inFIG. 5.