A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.

A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.

A number of embodiments of a firearm are disclosed where the firearm includes a magazine configured to hold the bolt in an open position when the magazine is empty. In one embodiment, the firearm includes a bolt stop mechanism that moves between a first position where it allows the bolt to cycle between an open position and a closed position and a second position where it holds the bolt in the open position. The magazine is configured to actuate the bolt stop mechanism to the first position when the magazine is empty.

A number of embodiments of a firearm are disclosed where the firearm includes a magazine configured to hold the bolt in an open position when the magazine is empty. In one embodiment, the firearm includes a bolt stop mechanism that moves between a first position where it allows the bolt to cycle between an open position and a closed position and a second position where it holds the bolt in the open position. The magazine is configured to actuate the bolt stop mechanism to the first position when the magazine is empty.

The present invention is an ammunition magazine comprising at least one slide lock release relief depression configured to accept at least a portion of at least one slide lock release lever. The magazine body can further comprise at least one of a trigger bar relief depression and frame relief depression configured to accept corresponding components of a firearm and permitting function of the same.

The present invention is an ammunition magazine comprising at least one slide lock release relief depression configured to accept at least a portion of at least one slide lock release lever. The magazine body can further comprise at least one of a trigger bar relief depression and frame relief depression configured to accept corresponding components of a firearm and permitting function of the same.

An air gun is provided with a magazine safety system and methods of making the air gun safe utilizing the magazine. The air gun includes a magazine well protrusion (e.g., floorplate) configured to extend into the magazine well when no magazine is properly inserted into and received in the magazine well. In the extended position, the protrusion prevents actuation of the main valve of the air gun. When a magazine is properly inserted into the magazine well, the protrusion is pushed into a recessed or depressed position by the interaction of the magazine with the magazine well such that the protrusion does not prevent actuation of the main valve of the air gun.

An air gun is provided with a magazine safety system and methods of making the air gun safe utilizing the magazine. The air gun includes a magazine well protrusion (e.g., floorplate) configured to extend into the magazine well when no magazine is properly inserted into and received in the magazine well. In the extended position, the protrusion prevents actuation of the main valve of the air gun. When a magazine is properly inserted into the magazine well, the protrusion is pushed into a recessed or depressed position by the interaction of the magazine with the magazine well such that the protrusion does not prevent actuation of the main valve of the air gun.

The invention relates to a firearm, in particular for shooting cartridge ammunition, having at least one weapon chassis 3, a weapon system support 4, and a weapon system apparatus 5; at least the weapon chassis 3 and the weapon system support 4 have corresponding engagement means 10 provided in spacing patterns via which they can be axially positioned differently relative to each other.

The invention relates to a firearm, in particular for shooting cartridge ammunition, having at least one weapon chassis 3, a weapon system support 4, and a weapon system apparatus 5; at least the weapon chassis 3 and the weapon system support 4 have corresponding engagement means 10 provided in spacing patterns via which they can be axially positioned differently relative to each other.