A firearm is provided comprising a frame which defines a forward aperture. A cylinder is mounted rotatably to the frame to rotate on a cylinder axis. The cylinder defines a plurality of passages each at a common radius from the axis, each passage includes a chamber and a rifled bore. At least one of the passages is being chambered for a different caliber than at least one other of the passages.

Firearms with electronic ignitions have a frame defining an ammunition receptacle having an open lower end and a closed upper end and opposed lateral sidewalls, a plurality of barrels connected to the frame, each barrel having a rear end aperture providing communication with the ammunition receptacle, an ammunition cartridge adapted to be closely and removably received in the ammunition receptacle in an operation position between the opposed lateral sidewalls, the ammunition cartridge having a plurality of ammunition elements, and each ammunition element being registered with a corresponding one of the barrels. Each ammunition element may include a chamber tube element containing propellant and projectile. Each chamber tube element may include a pressure containment member adapted to contain pressures associated with discharge. Each barrel may define a barrel axis, and the barrel axes may be parallel to each other. The ammunition receptacle may be an elongated passage.

Firearms with electronic ignitions have a frame defining an ammunition receptacle having an open lower end and a closed upper end and opposed lateral sidewalls, a plurality of barrels connected to the frame, each barrel having a rear end aperture providing communication with the ammunition receptacle, an ammunition cartridge adapted to be closely and removably received in the ammunition receptacle in an operation position between the opposed lateral sidewalls, the ammunition cartridge having a plurality of ammunition elements, and each ammunition element being registered with a corresponding one of the barrels. Each ammunition element may include a chamber tube element containing propellant and projectile. Each chamber tube element may include a pressure containment member adapted to contain pressures associated with discharge. Each barrel may define a barrel axis, and the barrel axes may be parallel to each other. The ammunition receptacle may be an elongated passage.

A forward grip system is disclosed for supporting a paintball gun. The forward grip system has an inner, longer, hollow cylindrical body with threaded sections with two conical ends with slits around them. The middle section of the inner, longer, hollow cylindrical body has a groove for the outer, shorter, hollow cylindrical body to rotate around on. The edges of the grooved middle section of the inner, longer, hollow cylindrical body are raised to secure the outer, shorter, hollow cylindrical body within the grooved middle section as it rotates around the inner, longer, hollow cylindrical body. A vertical shaft is connected onto the outer, shorter, hollow cylindrical body to function as the handle. There are two threaded locking collars for engaging each of the threaded sections of the inner, longer, hollow cylindrical body for the purpose of locking the forward grip system in place onto a paintball barrel.

The invention relates to a firearm comprising a housing (1), having a cartridge feed (2), a breechblock, an impacting unit having a trigger, optionally a magazine shaft (3) for holding a magazine (4), and a unit (5) of two barrels (6, 7) arranged one over the other. The upper barrel (6) is longer than the lower barrel (7). Guide protrusions (8) are provided on the unit (5) of the two barrels (6, 7), which guide protrusions are guided in corresponding control tracks (9, 10) in the housing (1), whereby the two barrels (6, 7) can be moved along the control tracks (9, 10) between two end positions, wherein, when each end position is reached, alternately one of the two barrels (6, 7) aligns with the cartridge feed (2) and therefore forms the active barrel, which can be locked in this position.

The invention relates to a firearm comprising a housing (1), having a cartridge feed (2), a breechblock, an impacting unit having a trigger, optionally a magazine shaft (3) for holding a magazine (4), and a unit (5) of two barrels (6, 7) arranged one over the other. The upper barrel (6) is longer than the lower barrel (7). Guide protrusions (8) are provided on the unit (5) of the two barrels (6, 7), which guide protrusions are guided in corresponding control tracks (9, 10) in the housing (1), whereby the two barrels (6, 7) can be moved along the control tracks (9, 10) between two end positions, wherein, when each end position is reached, alternately one of the two barrels (6, 7) aligns with the cartridge feed (2) and therefore forms the active barrel, which can be locked in this position.

Embodiments of the invention include a firearm system and method of assembly of the firearm system including a receiver complex including a receiver coupled to a forward receiver. A feed port is positioned between the receiver and the forward receiver, and a striker coil assembly is positioned proximate the receiver, and includes a plurality of strikers each extending at least partially through a coil. An interchangeable barrel is coupled to the forward receiver forming a breech. In some embodiments, the firearm system includes a breech that includes a plurality of side-by-side bores of the barrel. Some embodiments include a magazine coupled to the receiver complex adjacent the feedport to simultaneously feed more than one dischargeable projectile into the feedport with a single charge block. In some embodiments, the charge block includes a plurality of chambers and a plurality of projectiles positioned within the plurality of chambers.

Embodiments of the invention include a firearm system and method of assembly of the firearm system including a receiver complex including a receiver coupled to a forward receiver. A feed port is positioned between the receiver and the forward receiver, and a striker coil assembly is positioned proximate the receiver, and includes a plurality of strikers each extending at least partially through a coil. An interchangeable barrel is coupled to the forward receiver forming a breech. In some embodiments, the firearm system includes a breech that includes a plurality of side-by-side bores of the barrel. Some embodiments include a magazine coupled to the receiver complex adjacent the feedport to simultaneously feed more than one dischargeable projectile into the feedport with a single charge block. In some embodiments, the charge block includes a plurality of chambers and a plurality of projectiles positioned within the plurality of chambers.

A barrel clamp for a Gatling-style firearm, or mini-gun, provides vanes for the direction of fresh air currents into the muzzle area of the firearm. The directed air streams contribute to cooling the barrels while in the firing cycle and also towards the disruption of fuel-rich gasses which contribute to muzzle flash.

A barrel clamp for a Gatling-style firearm, or mini-gun, provides vanes for the direction of fresh air currents into the muzzle area of the firearm. The directed air streams contribute to cooling the barrels while in the firing cycle and also towards the disruption of fuel-rich gasses which contribute to muzzle flash.