A disrupter cannon includes a barrel for launching a projectile. An insert may be used to launch a projectile of a smaller diameter than the projectile launched through the barrel of the disrupter cannon. An insert includes a bore therethrough, a breech-end portion, and a muzzle-end portion. The breech-end portion includes a channel. An O-ring is positioned in the channel of the breech-end portion. The muzzle-end portion includes one or more channels. A respective O-ring is positioned in each channel of the muzzle-end portion. While the insert is positioned in the barrel, the O-rings are configured to form a seal between an outer surface of the insert and an inner surface of the barrel. The projectile with a smaller diameter is launched through the bore of the insert.

A system for attaching an accessory to a firearm includes a muzzle device configured for attachment to the muzzle end of the firearm, the muzzle device having a first coarse-threaded engagement means and one of an annular grooved surface and a grooved surface engagement mechanism, and an adapter device. The adapter device includes an adapter having a forward portion including an accessory engagement means for receiving the accessory and a rearward portion having a second coarse-threaded engagement means formed on an inner surface of the adapter, a biasing mechanism received on the rearward portion, and a retainer ring received on the rearward portion adjacent to the biasing mechanism, the retainer ring having the other of the annular grooved surface and the grooved surface engagement mechanism. The male coarse-threaded engagement means and the female coarse-threaded engagement means cooperate to releasably secure the adapter device to the muzzle device.

A barrel assembly for use in a semiautomatic firearm, including a barrel and a takedown lever. A rear portion of the barrel includes a follower lug and a rear lug extending from an underside of the rear portion. The follower lug further includes a follower notch. A pin of the takedown lever includes a notch with a vertical face configured to contact a vertical face of the follower notch when the firearm is in the locked position. The rear lug is configured to be supported by a portion of a locking block of the firearm prior to firing and during a portion of the recoil period. The modifications to the barrel assembly result in increased dwell time and accuracy of the firearm.

A barrel assembly for use in a semiautomatic firearm, including a barrel and a takedown lever. A rear portion of the barrel includes a follower lug and a rear lug extending from an underside of the rear portion. The follower lug further includes a follower notch. A pin of the takedown lever includes a notch with a vertical face configured to contact a vertical face of the follower notch when the firearm is in the locked position. The rear lug is configured to be supported by a portion of a locking block of the firearm prior to firing and during a portion of the recoil period. The modifications to the barrel assembly result in increased dwell time and accuracy of the firearm.

A firearm training barrel for a replica gun, the gun having a slide, a magazine configured to store pellets, and a nozzle. The barrel includes a pellet ejecting mechanism to eject pellets loaded in the magazine thereby simulating the ejection of a casing/shell.

A firearm training barrel for a replica gun, the gun having a slide, a magazine configured to store pellets, and a nozzle. The barrel includes a pellet ejecting mechanism to eject pellets loaded in the magazine thereby simulating the ejection of a casing/shell.

Disclosed is a system that allows for the paid firing of a semi-automatic weapon. The system includes both a stabilizer and a forearm brace that are adapted to receive the cylindrical receiver tube of an associated firearm. The receiver tube is adapted to be slidably received within both the stabilizer and the brace. A bearing surface upon the main housing of the firearm cooperatively engages an associated bearing surface within the stabilizer. Along with a finger rest, this allows the firearm to be rapidly fired as the receiver oscillates within the stabilizer and brace. The brace includes sleeve that allows the system to be mounted upon the forearm of a user.

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.

A rifle intelligence system includes a sensor module comprising an enclosure configured to be removably secured to a firearm; a processor disposed within the module enclosure; and a plurality of sensors disposed within the module enclosure and communicatively coupled to the processor. The plurality of sensors is configured to generate shot attribute data associated with operation of the firearm and to wirelessly transmit the shot attribute data to a mobile computing device. The shot attribute data includes at least acceleration of the firearm along a bore axis and a temperature measurement of the barrel of the firearm.