An automatic submachine gun for exploiting recoil, that includes a stock; a fixed barrel; a grip provided with an extractable butt; a bolt sliding in direction parallel to the longitudinal axis of the barrel inside the stock for locking the breech of the barrel; a device for recovering the recoil kinetic energy of the bolt; a hammer swinging in opposition and through the action of a spring actuator element between a cocked position and an uncocked position; a trigger assembly for the hammer; an opposing lever of the hammer for single shot fire; and an opposing lever of the hammer for continuous burst fire; a manual fire mode selector; an extractable magazine for loading cartridge ammunition; and a firing pin.

An automatic submachine gun for exploiting recoil, that includes a stock; a fixed barrel; a grip provided with an extractable butt; a bolt sliding in direction parallel to the longitudinal axis of the barrel inside the stock for locking the breech of the barrel; a device for recovering the recoil kinetic energy of the bolt; a hammer swinging in opposition and through the action of a spring actuator element between a cocked position and an uncocked position; a trigger assembly for the hammer; an opposing lever of the hammer for single shot fire; and an opposing lever of the hammer for continuous burst fire; a manual fire mode selector; an extractable magazine for loading cartridge ammunition; and a firing pin.

Disclosed is a side-mounted forward charging system for a firearm. The side-mounted forward charging system for a firearm is designed to be a simple and immediate upgrade to various firearms, for example, pistol-caliber AR platform rifles. The side-mounted forward charging system for a firearm includes the following components: a handguard, a barrel nut, a forward retention unit, a charging catch, a charging rod, and a charging handle. The side-mounted forward charging system for a firearm works without any additional proprietary components. The side-mounted forward charging system for a firearm allows a user to charge a firearm with a user's left or right hand while maintaining a horizontal position aimed at a target. The side-mounted forward charging system for a firearm gives a safety advantage to a user, allows for more accurate and quicker targeting while charging, and provides for overall efficiency while operating the firearm.

Disclosed is a side-mounted forward charging system for a firearm. The side-mounted forward charging system for a firearm is designed to be a simple and immediate upgrade to various firearms, for example, pistol-caliber AR platform rifles. The side-mounted forward charging system for a firearm includes the following components: a handguard, a barrel nut, a forward retention unit, a charging catch, a charging rod, and a charging handle. The side-mounted forward charging system for a firearm works without any additional proprietary components. The side-mounted forward charging system for a firearm allows a user to charge a firearm with a user's left or right hand while maintaining a horizontal position aimed at a target. The side-mounted forward charging system for a firearm gives a safety advantage to a user, allows for more accurate and quicker targeting while charging, and provides for overall efficiency while operating the firearm.

A bolt for a firearm includes, among other things, a bolt body extending between a first bolt end and a second bolt end, the bolt body defining a shaped cavity adjacent to a breech lock recess. The shaped cavity is defined by a cavity floor extending between a forward cavity face and a rear cavity face, the forward cavity face defines a forward angle relative to the cavity floor, the rear cavity face defines a rear angle relative to the cavity floor, and each of the forward angle and the rear angle is acute. A bolt assembly for a firearm and a method of fabricating a bolt for a firearm are also disclosed.

A bolt for a firearm includes, among other things, a bolt body extending between a first bolt end and a second bolt end, the bolt body defining a shaped cavity adjacent to a breech lock recess. The shaped cavity is defined by a cavity floor extending between a forward cavity face and a rear cavity face, the forward cavity face defines a forward angle relative to the cavity floor, the rear cavity face defines a rear angle relative to the cavity floor, and each of the forward angle and the rear angle is acute. A bolt assembly for a firearm and a method of fabricating a bolt for a firearm are also disclosed.