Rifles comprising a bolt catch device

Patent metadata

Field	Value
Publication number	US-12492875-B2
Application number	US-202218718047-A
Country	US
Kind code	B2
Filing date	Nov 25, 2022
Priority date	Dec 10, 2021
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

Firearms including a bolt catch device, having a receiver comprising a duct, wherein the bolt catch device comprises a foot, a slider, and a spring, and the foot, on the leg thereof and on the magazine well side, has a groove for receiving the spring and, on the side facing the trigger device, has a socket; wherein the slider has, on the lower portion thereof, bearing bolts for being inserted into and pivoted in the socket, wherein the slider has, at the upper end thereof, a protrusion which protrudes in the direction of the magazine well beyond the contour of the duct, and wherein the receiver has an abutment that protrudes into the groove in order to prestress the spring of the bolt catch into the rest position.

First claim

The invention claimed is:

1 . A firearm, including a receiver having a firearm center plane, the firearm comprising:
a magazine well defined by the receiver and configured to receive a magazine; a trigger device disposed along the firearm center plane in front of or behind the magazine well; a duct defined in the receiver that, when the firearm is held horizontally, extends substantially vertically between the magazine well and the trigger device; and a bolt catch device disposed in the duct, the bolt catch device having a bolt catch portion configured to interact with a bolt or a bolt carrier of the firearm when in a working position, and when in the working position the bolt catch device engages in the movement path of the bolt; wherein
the bolt catch device comprises a foot, a slider, and a spring;
the foot has a leg and at least one handle that protrudes laterally beyond a contour of the duct;
the leg of the foot defines a groove configured to receive the spring, the groove being defined on the side of the leg facing the magazine well;
the leg of the foot defines a socket, the socket being defined on the side of the leg facing the trigger device, wherein the socket has an axis that extends normal to the firearm center plane;
the slider includes, on a lower portion thereof when assembled, bearing bolts that are configured to be inserted into and pivoted in the socket;
the slider includes, at an upper end thereof, a protrusion that protrudes in a direction of the magazine well beyond the contour of the duct; and
the receiver includes an abutment that protrudes into the groove so as to prestress the spring of the bolt catch into a rest position.

2 . The firearm of claim 1 wherein the trigger device can be upwardly removed from the receiver.

3 . The firearm of claim 1 , wherein the slider has a downwardly tapering, conical shape on a rear side of the slider.

4 . The firearm of claim 1 , wherein the bearing bolts of the slider have a circular cross-section, and the circular cross-section has a flattened portion.

5 . The firearm of claim 1 , wherein the leg of the foot has at least one stop in the form of an undercut recess that extends normal to the firearm center plane; and
the slider has at least one stop bolt having a complementary shape that comes into clamping engagement with the at least one stop by means of elastic deformation when the bearing bolts pivot in the socket.

6 . The firearm of claim 5 , wherein the at least one stop and the at least one stop bolt have a larger diameter than the sockets and bearing bolts.

7 . The firearm of claim 5 , the firearm comprising two stops and two stop bolts that have different distances from the sockets and the bearing bolts.

8 . The firearm of claim 1 , wherein a cross section of the groove is undercut, and the spring is a helical spring having an outer diameter that is larger than a narrow point of the undercut.

9 . The firearm of claim 1 , wherein the trigger device is housed in a trigger housing, and when an assembled state the trigger housing forms at least part of a rear wall of the duct.

10 . The firearm of claim 1 , wherein the duct is defined in a lower receiver of the firearm.

Assignees

• Glock Tech Gmbh

Inventors

• Wutte Andreas
• Bilgeri Elmar

Classifications

• F41A35/06

  Adaptation of guns to both right and left hand use · CPC title

• F41A17/36 Primary

  locking the gun {automatically} in a safety condition when the magazine is empty or removed {(F41A17/44 takes precedence)} · CPC title