Disclosed is a lower receiver that defines an aperture extending between a bolt stop well and an actuator well, the lower receiver including a bolts stop and a first actuator lever on one side of the lower receiver and a bolt stop actuator that includes a tooth that extends through the aperture, a second bolt release lever on the other side of the lower receiver and a rod connecting the tooth and the second bolt release lever, wherein the tooth engages the bolt stop so that actuation of the second bolt release lever moves the bolt stop and where the first and second release levers move in unison.

A firearm (1) includes a detection system (10) suitable to detect a configuration change of the firearm from an initial configuration. The detection system (10) includes a detection device (100), on the slide (20) suitable to be moved, starting from an initial position, to a detection position in which the detection device (100) detects a configuration change of the firearm. An idler device (200) on the slide (20) engages with the detection device (100) which moves the idler device (200). The detection device (200) includes at least one primary sensor element (250), a receiver device (300) on the main body (5) suitable to receive the information of the configuration change of the firearm from the primary sensor element (250) and at least a secondary sensor element (350).

Magazine release apparatus and firearms including such magazine release apparatus are disclosed. An example bolt release for use with a firearm includes a first handle to protrude from a first side of the firearm and a second handle to protrude from a second side of the firearm. The first and second handles are integral. The first and second handles are to enable the bolt release to be operable from the first and second sides of the firearm. The bolt release includes a pivot axis adjacent the first side or the second side. The pivot axis is to enable the bolt release to be pivoted between a release position and a retained position. The bolt release to be biased toward the release position.

Magazine release apparatus and firearms including such magazine release apparatus are disclosed. An example bolt release for use with a firearm includes a first handle to protrude from a first side of the firearm and a second handle to protrude from a second side of the firearm. The first and second handles are integral. The first and second handles are to enable the bolt release to be operable from the first and second sides of the firearm. The bolt release includes a pivot axis adjacent the first side or the second side. The pivot axis is to enable the bolt release to be pivoted between a release position and a retained position. The bolt release to be biased toward the release position.

A device and system for firearm tracking capable of tracking firearm location and status while limiting un-authorized use of a firearm. The device featuring a housing that is compatible with a firearm magazine-well wherein once secured to a firearm the device may not be disassociated therefrom rendering the firearm non-functional.

The present disclosure generally relates to a bolt catch device that prevents the bolt of a bolt carrier assembly of a firearm from moving to its forward position so as to prevent the firearm from being discharged until the user manually moves the bolt catch. The bolt catch is mechanically coupled to the selector of the firearm via a linkage, so that the bolt catch can be moved by way of the selector. This feature can prevent a self-loading firearm that otherwise could function on a semi-automatic basis from operating in such a manner.

The present disclosure generally relates to a bolt catch device that prevents the bolt of a bolt carrier assembly of a firearm from moving to its forward position so as to prevent the firearm from being discharged until the user manually moves the bolt catch. The bolt catch is mechanically coupled to the selector of the firearm via a linkage, so that the bolt catch can be moved by way of the selector. This feature can prevent a self-loading firearm that otherwise could function on a semi-automatic basis from operating in such a manner.

A firearm as disclosures herein comprises a main receiver body, a barrel, a breech bolt structure, a buffer assembly, a trigger group assembly, a bolt catch and at least one of an auto-sear, a magazine adapter and a breech bolt anti-rotation structure. The main receiver body is preferably of a monolithic construction whereby the handguard and breech bolt carrying bore can be manufactured from a single piece of material. The auto-sear is tripped by engagement with a buffer of the buffer assembly. The magazine adapter has an exterior surface structure engaged with a mating interior surface structure of a magazine well space of the main receiver body. A distal end portion of the breech bolt anti-rotation structure is engageable by the buffer for limiting forward travel of the buffer when the barrel is detached from the main receiver body.

A bolt stop actuator is disclosed. The actuator may include a lift arm, a first leg extending from a point proximate to an end of the lift bar and generally perpendicular therefrom, a second leg extending in the same direction from the lift bar as the first leg, and a projection extending from the lift bar and configured to contact a follower of an empty magazine when the bolt stop actuator is assembled into a firearm. Neither the first leg, nor the second leg, include apertures positioned distal to the lift arm.

A firearm comprises a frame having a barrel and defining a passage registered with the barrel, with a bolt configured to reciprocate in the passage between a forward battery condition and a retracted condition. A latch that is movable between a retention position in which the bolt is prevented by the latch from moving from the retracted position to the battery position, and a release condition in which the bolt is prevented by the latch from moving from the retracted position to the battery position. The latch is biased to the retention position such that the bolt is retained in the retracted position after every shot; and an actuator connected to the latch and configured to move the latch to the release condition.