Firearms and barrel assemblies are provided herein that include a barrel assembly having a barrel having a proximal end and a distal end comprising a muzzle. The barrel also includes a chamber defined in the proximal end. The chamber includes a distal end and a proximal end. A bore extends distally from the distal end of the chamber. The bore defines a central axis of the barrel assembly. The barrel assembly also includes a barrel extension extending from the proximal end of the barrel. The barrel extension has a distal end and a proximal end. The barrel extension defines a bolt receiving recess in communication with the chamber. The barrel extension further has a barrel vent channel defined therein in communication with the bolt receiving recess. The barrel vent channel is defined in the barrel extension in a direction that is transverse to the central axis of the barrel assembly.

A pistol is provided comprising a frame with a slide configured to reciprocate on the frame between a forward battery position and a rearward recoil position, having a slide muzzle end. Further, a barrel connects to the frame, having a barrel muzzle end. When the slide is in the battery position, the muzzle end of the slide is spaced apart forward of the muzzle end of the barrel by a first selected spacing. When the slide is in the recoil position, the muzzle end of the slide is spaced apart forward of the muzzle end of the barrel by a second selected spacing less than the first spacing, whereby the slide may be reciprocated by application of force to the muzzle end.

The present disclosure is directed to a firearm capable of holding more than one magazines. In a particular embodiment, the firearm can include an operational magazine well adapted to receive an operational magazine and a secondary magazine well adapted to receive a secondary magazine, wherein the secondary magazine well is nonoperational.

A sub-mass projectile for a standard, unmodified firearm, comprising a core formed from a malleable core material with at least a portion of the core material being a non-metal material. The core has a lower mass than a standard projectile for the standard, unmodified firearm. The core material has a mass and malleability that generates forces between the sub-mass projectile and the firearm that approximate operational forces of a standard mass projectile on the standard, unmodified firearm during operation.

A sub-mass projectile for a standard, unmodified firearm, comprising a core formed from a malleable core material with at least a portion of the core material being a non-metal material. The core has a lower mass than a standard projectile for the standard, unmodified firearm. The core material has a mass and malleability that generates forces between the sub-mass projectile and the firearm that approximate operational forces of a standard mass projectile on the standard, unmodified firearm during operation.

The present disclosure is directed to a firearm capable of holding more than one magazines. In a particular embodiment, the firearm can include an operational magazine well adapted to receive an operational magazine and a secondary magazine well adapted to receive a secondary magazine, wherein the secondary magazine well is nonoperational.

A method of feeding rounds of linked, or un-linked, ammunition to a gun includes a motor-driven chain drive which rotates about a track. A rotatable feeder engages the ammunition to feed an ammunition round into a round extractor/retractor. A rotatable round positioner receives an ammunition round from the round extractor/retractor, and rotates it to a firing position. A main geneva wheel, mounted near the chain drive, is sequentially engaged by first and second drive rollers, secured to the chain drive, for being periodically rotated thereby. Drive pins of the main geneva wheel sequentially engage radial slots in a belt/round feed geneva wheel and a round positioning geneva wheel for timed rotation thereof to synchronize the operation of the round feeder and round positioner.

A programming device for programming of munition bodies, including a retaining device to which a programming head for transmitting programming data to the munition bodies is fastened, the programming head begin designed as an interchangeable programming head module. The invention further relates to a projectile rammer having a programming device and to a method for programming a munition body.

A handgun subassembly includes a frame with a distal frame portion and a proximal frame end portion, where the frame has frame rails extending longitudinally along a top of the frame. A slide is displaceable along the frame rails between a recoil position and a battery position. The slide defines a catch surface adjacent a bottom portion of the slide. A forward assist assembly is disposed between the slide and the frame or grip module. The forward assist assembly provides a force on the slide in a distal direction when the slide is within a predetermined distance from the battery position.

A handgun subassembly includes a frame with a distal frame portion and a proximal frame end portion, where the frame has frame rails extending longitudinally along a top of the frame. A slide is displaceable along the frame rails between a recoil position and a battery position. The slide defines a catch surface adjacent a bottom portion of the slide. A forward assist assembly is disposed between the slide and the frame or grip module. The forward assist assembly provides a force on the slide in a distal direction when the slide is within a predetermined distance from the battery position.