A bullpup shotgun which ejects shells from the bottom of its action has a reciprocable cover which, when in a closed position, overlies the breech end of the shotgun's barrel. When in an open position, the cover is in spaced relation to the barrel breech end, allowing access to the shotgun's action to clear an ammunition feed malfunction. The cover is mounted on a butt stock, and is slidable or rotatable relatively to the shotgun's butt stock to effect motion of the cover between the open and closed positions.

A firearm is disclosed which advantageously allows for firing from two different magazines, one in a magazine well ahead of a trigger, and a second magazine held in a handle of a pistol grip of the firearm. This allows for both sub-machine gun and pistol firing configurations, allowing for increased firing capacity and allowing the firearm to continuously fire while reloading.

A firearm is disclosed which advantageously allows for firing from two different magazines, one in a magazine well ahead of a trigger, and a second magazine held in a handle of a pistol grip of the firearm. This allows for both sub-machine gun and pistol firing configurations, allowing for increased firing capacity and allowing the firearm to continuously fire while reloading.

A rifle includes a magazine well, a barrel, an exo-bolt, and a rear magazine support. The barrel is detachably coupled to the magazine well. The barrel includes a forward barrel portion on an end of the barrel opposite the magazine well. The exo-bolt is configured to travel along an exterior of the barrel. The rear magazine support is coupled to the magazine well and opposite the barrel. The rear magazine support is configured to come forward toward the barrel and be secured in a plurality of distances from the barrel to adjust a length of the magazine well.

This patent relates to a smooth bore barrel, replaceable magazine fed, semi-automatic pistol weighing at least 5 pounds for discharging of slug, shot, or crowd control/specialty loads of at least 12-gauge (18.5 mm), 1.75-inch (42 mm) shell loads with a recoil energy less than 45 ft-lbs.

This patent relates to a smooth bore barrel, replaceable magazine fed, semi-automatic pistol weighing at least 5 pounds for discharging of slug, shot, or crowd control/specialty loads of at least 12-gauge (18.5 mm), 1.75-inch (42 mm) shell loads with a recoil energy less than 45 ft-lbs.

A cam race comprising a hardened material (harder than a material of an upper receiver) is provided to increase durability of a firearm. The cam race is fit within a groove within an interior sidewall of an upper receiver of the firearm. The cam race comprises a body that is fit within the groove, and a plurality of fastener pins extending away from a rear face of the body that fit within corresponding through-holes of the upper receiver. Distal ends of each of the fastener pins are deformed to form a riveted connection between the cam race and the upper receiver. The cam race defines a slide face along which a cam pin of the firearm slides during a firing process, thereby increasing the durability of the firearm against undesired formation of defects within the interior sidewall of the upper receiver.

A cam race comprising a hardened material (harder than a material of an upper receiver) is provided to increase durability of a firearm. The cam race is fit within a groove within an interior sidewall of an upper receiver of the firearm. The cam race comprises a body that is fit within the groove, and a plurality of fastener pins extending away from a rear face of the body that fit within corresponding through-holes of the upper receiver. Distal ends of each of the fastener pins are deformed to form a riveted connection between the cam race and the upper receiver. The cam race defines a slide face along which a cam pin of the firearm slides during a firing process, thereby increasing the durability of the firearm against undesired formation of defects within the interior sidewall of the upper receiver.

A dual magazine release system for a firearm has a housing attachable to a firearm. The housing includes first and second magazine holders, the first magazine holder positioned to retain a first magazine to feed ammunition to the firearm and the second magazine holder positioned in front of a trigger of the firearm and configured to retain a spare second magazine. A magazine retaining and release system is coupled to the housing and configured to retain the first magazine in the first magazine holder and to retain the second magazine in the second magazine holder and to selectively release the first magazine or the second magazine independently from one another or to substantially simultaneously release the first and second magazines from the first and second magazine holders, respectively, upon actuation of the magazine retaining and release system by a user.

A dual magazine release system for a firearm has a housing attachable to a firearm. The housing includes first and second magazine holders, the first magazine holder positioned to retain a first magazine to feed ammunition to the firearm and the second magazine holder positioned in front of a trigger of the firearm and configured to retain a spare second magazine. A magazine retaining and release system is coupled to the housing and configured to retain the first magazine in the first magazine holder and to retain the second magazine in the second magazine holder and to selectively release the first magazine or the second magazine independently from one another or to substantially simultaneously release the first and second magazines from the first and second magazine holders, respectively, upon actuation of the magazine retaining and release system by a user.