Abstract: A projectile firing gun or weapon barrel is adapted with a gas porting system having conduits and outlets specifically configured, positioned and adapted for maximizing reductions in muzzle jump and/or recoil in accordance with principles of reverse thrust. The conduits or flow tubes are contemplated to be configured to function as nozzles whereby varying the shape and size of the conduit walls can maximize the outlet velocity of gases flowing at subsonic as well as supersonic velocities and the stream of redirected gas flow can be concentrated. The system incorporates porting holes located further rearward than at the barrel muzzle, but at a proven safe distance from the barrel chamber, which porting holes are in fluid communication with gas conduits/nozzles.

Abstract: A projectile firing gun or weapon barrel is adapted with a gas porting system having conduits and outlets specifically configured, positioned and adapted for maximizing reductions in muzzle jump and/or recoil in accordance with principles of reverse thrust. The conduits or flow tubes are contemplated to be configured to function as nozzles whereby varying the shape and size of the conduit walls can maximize the outlet velocity of gases flowing at subsonic as well as supersonic velocities and the stream of redirected gas flow can be concentrated. The system incorporates porting holes located further rearward than at the barrel muzzle, but at a proven safe distance from the barrel chamber, which porting holes are in fluid communication with gas conduits/nozzles.

Abstract: A clamping fixture for use in the assembly of a gate comprised of a number of plastic members includes a flat stationary clamping surface attached to a stationary frame and a flat moving clamping surface extending parallel to the flat clamping surface and driven toward the flat clamping surface by an actuator, so that the plastic members, assembled in the configuration of the gate, are clamped and held between the clamping surfaces. Preferably, the actuator, which includes one or more pneumatic cylinders, is adjustable along the frame to provide for the assembly of gates having different widths. Preferably, the clamping fixture additionally includes a stationary flat guiding strip extending perpendicularly from an end of the flat stationary clamping surface toward the flat moving clamping surface.

Abstract: A projectile firing gun or weapon barrel is adapted with a gas porting system having conduits and outlets specifically configured, positioned and adapted for maximizing reductions in muzzle jump and/or recoil in accordance with principles of reverse thrust. The conduits or flow tubes are contemplated to be configured to function as nozzles whereby varying the shape and size of the conduit walls can maximize the outlet velocity of gases flowing at subsonic as well as supersonic velocities and the stream of redirected gas flow can be concentrated. The system incorporates porting holes located further rearward than at the barrel muzzle, but at a proven safe distance from the barrel chamber, which porting holes are in fluid communication with gas conduits/nozzles.

Abstract: A projectile firing gun or weapon barrel is adapted with a gas porting system having conduits and outlets specifically configured, positioned and adapted for maximizing reductions in muzzle jump and/or recoil in accordance with principles of reverse thrust. The conduits or flow tubes are contemplated to be configured to function as nozzles whereby varying the shape and size of the conduit walls can maximize the outlet velocity of gases flowing at subsonic as well as supersonic velocities and the stream of redirected gas flow can be concentrated. The system incorporates porting holes located further rearward than at the barrel muzzle, but at a proven safe distance from the barrel chamber, which porting holes are in fluid communication with gas conduits/nozzles.

Abstract: A clamping fixture for use in the assembly of a gate comprised of a number of plastic members includes a flat stationary clamping surface attached to a stationary frame and a flat moving clamping surface extending parallel to the flat clamping surface and driven toward the flat clamping surface by an actuator, so that the plastic members, assembled in the configuration of the gate, are clamped and held between the clamping surfaces. Preferably, the actuator, which includes one or more pneumatic cylinders, is adjustable along the frame to provide for the assembly of gates having different widths. Preferably, the clamping fixture additionally includes a stationary flat guiding strip extending perpendicularly from an end of the flat stationary clamping surface toward the flat moving clamping surface.

Abstract: A projectile firing gun or weapon barrel is adapted with a gas porting system having conduits and outlets specifically configured, positioned and adapted for maximizing reductions in muzzle jump and/or recoil in accordance with principles of reverse thrust. The conduits or flow tubes are contemplated to be configured to function as nozzles whereby varying the shape and size of the conduit walls can maximize the outlet velocity of gases flowing at subsonic as well as supersonic velocities and the stream of redirected gas flow can be concentrated. The system incorporates porting holes located further rearward than at the barrel muzzle, but at a proven safe distance from the barrel chamber, which porting holes are in fluid communication with gas conduits/nozzles.

Abstract: A projectile firing gun or weapon barrel is adapted with a gas porting system having conduits and outlets specifically configured and positioned for maximizing reductions in muzzle jump and recoil. Principles of reverse thrust are maximized to reduce muzzle jump by incorporating porting holes located toward the butt end of the barrel, which porting holes are in fluid communication with gas conduits terminating in upwardly directed openings for maximizing the generation of downward thrust forces. Venting explosion gases in a substantially upward direction maximizes downward vector thrust force to counteract muzzle jump. Venting the explosion gases at the butt end of the barrel maximizes the duration of thrust forces as gases are vented well prior to the projectile exiting the barrel. The conduits may be configured with nozzle outlets so as to redirect and concentrate the escaping gases thereby maximizing the forces to counter muzzle jump and recoil.