RU226247U9 - The mechanism for locking a magazine in a firearm - Google Patents

Abstract

The utility model relates to the field of firearms, namely to mechanisms for fixing a magazine in a weapon, in particular in an AR-15 type rifle.

The magazine locking mechanism in a firearm consists of an upper receiver, a lower receiver with a magazine well, a magazine release button, while in the lower part of the upper receiver of the magazine well there are trapezoidal stops designed to ensure that the front tooth of the magazine rests on the front axis of the magazine well.

The technical result of the claimed utility model is to ensure the ability to fix a standard AK-74 magazine in the lower receiver shaft of an AR-15 rifle.

Description

The utility model relates to the field of firearms, namely to mechanisms for fixing a magazine in a weapon, in particular in an AR-15 type rifle.

A device is known that is implemented on a firearm and includes a magazine release device that has a magazine latch and a magazine release button connected to the magazine latch, wherein the magazine release button comprises: a connector configured to connect the magazine release button to the magazine latch, and a removable pedal attached with the ability to slide to the coupling, wherein the first end of the coupling is configured to be attached to the magazine latch, and the second end of the coupling, opposite its first end, is configured to be attached to the removable pedal, the second end of the connector is formed with projections on its two opposite sides, the removable pedal has a first main side and a second main side opposite the first main side, wherein the second main side has a first projection and a second projection on two opposite ends, the first projection has a first groove, and the second projection has a second groove, when the removable pedal is attached to the connector, the first main side faces outward for pressing by the user, and the second main side is connected to the second end of the connector with received projections on the second end of the connector in the first and second grooves of the first and second projections on the second main side of the removable pedal, the magazine release button further comprises a sleeve having a cavity designed to accommodate a sleeve therein, a first end and a second end opposite to its first end, and when the second main side of the removable pedal is connected to the second end of the sleeve, the second main side of the removable pedal engages with the second end of the sleeve (publication US20220011064, IPC F41A 17/38, F41A 35/06, F41A 3/66, F41A 9/59, 2020, 2022, https://patentscope.wipo.int/search/ru/detail.jsf?docId=US347661354&_cid=P22-LN9WLE-64120-1).

The closest in technical essence to the claimed utility model is a receiver that includes a receiving well having a slot configured to receive a tab in a magazine with projections, during operation, a magazine with projections can be inserted into the receiving well without the need to rotate it, the magazine latch engages with a locking element in the magazine projection to support the magazine with projections in the well of the receiver, when the magazine with projections is empty, it can be ejected by pressing the magazine release button, without the need to pull the magazine with projections out of the well of the receiver, the magazine release button can be configured so that the user can remove the magazine with projections by pressing the magazine release button from either side of the receiver, after the loaded magazine with projections is placed in the well of the receiver, the user can press the bolt stop button to release it, and the bolt stop button can be configured so that the user can release the bolt stop by pressing the bolt stop button from either side of the receiver (publication WO/2005/116565, IPC F41A 9/61, F41A 9/00, 2004, 2005, https://patentscope.wipo.int/search/ru/detail.jsf?docId=WO2005116565&_cid=P11-LLP04X-49314-1).

The main common drawback of the known devices is their limited ability to be used only for standard magazines that correspond to the design of AR-15 rifles.

The objective of the claimed utility model is to eliminate the said drawback, and the technical result consists in ensuring the possibility of fixing a standard AK-74 magazine in the shaft of the lower receiver of the AR-15 rifle.

The specified technical result is achieved due to the fact that the magazine locking mechanism in the firearm consists of an upper receiver, a lower receiver with a magazine shaft, a magazine release button, while in the lower part of the upper receiver of the magazine shaft there are trapezoidal stops, designed with the possibility of ensuring the support of the front tooth of the magazine on the front axis of the magazine shaft.

The trapezoidal stops located in the lower part of the upper receiver of the magazine well ensure reliable and uniform positioning of the magazine in the well, preventing the magazine from rising into the line of movement of the bolt carrier.

The claimed utility model is illustrated by the following drawings:

Fig. 1 - mechanism for fixing a magazine in a firearm;

Fig. 2 - upper receiver in section and bottom view;

Fig. 3 - section of the shutter;

Fig. 4 - striker;

using the following notations:

1 - upper receiver;

2 - lower receiver;

3 - mine;

4 - magazine release button;

5 - bolt carrier;

6 - shutter;

7 - striker;

8 - store;

9 - stop;

10 - shutter mirror hole;

11 - firing pin outlet hole;

12 - front pin;

13 - rear pin;

14 - front axle of the magazine shaft.

The magazine locking mechanism in a firearm, shown in assembly in Fig. 1, consists of: an upper receiver 1, a lower receiver 2 with a shaft 3 of a magazine 8, a magazine release button 4, a bolt carrier 5, a bolt 6 and a striker 7. In the lower part of the upper receiver 1 of the shaft 3 of the magazine 8, stops 9 of a trapezoidal shape are made for reliable and uniform positioning of the magazine 8 in the shaft 3. In one of the possible embodiments of the claimed utility model, the opening of the bolt face 10 made on the bolt 6 according to Fig. 3 has a diameter of 10.1 mm, and the opening of the striker 11 exiting the bolt face is 2.1 mm. One of the possible embodiments of the striker shown in Fig. 4 has a nose diameter of 2 mm and a rounding at the end with a radius of 0.7 mm.

To assemble a firearm using the magazine release mechanism according to the claimed utility model, the front 12 and rear 13 locking pins located at opposite ends of the lower receiver 2 must be extended. Next, the upper receiver 1 is engaged with the lower receiver 2 by aligning the eye of the upper receiver 1 with the eyes of the lower receiver 2 at the front, after which the front pin 12 is retracted.

Bolt 6 is inserted into the front portion of bolt carrier 5. Then, aligning the opening in bolt 6 with the guide groove of bolt carrier 5, the bolt "campin" is installed into the carrier. Striker 7 is placed in the rear portion of bolt carrier 5 so that it passes into bolt 6 through the "campin." Striker 7 is secured with a pin inserted into a transverse opening of bolt carrier 5. Bolt carrier 5, complete with bolt 6, is installed into upper receiver 1, and the cocking handle is then attached.

The upper receiver 1 is fixed in the lower receiver 2 by turning it on the front pin 12 until the upper 1 and lower 2 receivers are in full contact, after which the rear pin 13 is pushed in.

To install magazine 8, insert the front tooth of magazine 8 into shaft 3 so that it engages the front axle of magazine shaft 14, where trapezoidal stops 9 are located. Then, with an upward movement, the magazine rises to stop 9. Magazine release button 4 snaps into place and secures magazine 8 in shaft 3.

To remove magazine 8, grasp the magazine with 8 fingers of your left hand, with your thumb on magazine release button 4. By pressing magazine release button 4, move the magazine forward and down and release the rear tooth of magazine 8 from the hook.

Claims (1)

A mechanism for securing a magazine in a firearm, consisting of an upper receiver, a lower receiver with a magazine well, and a magazine release button, characterized in that trapezoidal stops are located in the lower part of the upper receiver of the magazine well, designed to ensure that the front tooth of the magazine rests on the front axis of the magazine well.