A pneumatic air gun including a gun support, a barrel disposed on the gun support, a valve body, a pressure gauge, an air compression assembly, an energy storage assembly, and a triggering assembly. The air compression assembly is connected to the energy storage assembly, and the energy storage assembly is connected to the valve body. The triggering assembly includes a trigger support fixed to the gun support and a pull-bolt assembly, a trigger, a trigger button, and a hammer disposed on the trigger support. A spring is attached to the hammer. The trigger is connected to the trigger button. A loading thimble in the pull-bolt assembly slides on the gun support. The loading thimble is movably connected to the hammer and is adapted to control the hammer to reset and to be clamped on the trigger button.

A variable velocity pneumatic launcher including at least one chamber filled with a projectile. The launcher includes a ballast chamber filled with pressurized air selectively released to propel a projectile from the launcher's barrel. The launcher includes a firing chamber filled with ambient air and a ballast chamber filled with pressurized air. A piston rod extends between the chambers and attaches to a firing piston and a ballast piston located inside the firing chamber and ballast chamber, respectively. The rod is connected to an adjustable velocity valve which controls the amount of longitudinal movement of the rod. When the trigger is activated, a portion of the pressurized air from the ballast chamber is delivered to the firing chamber. Because the surface area of the firing piston is greater than the ballast piston's surface area, the force exerted on the firing piston is sufficient to shift or displace the ballast piston and allow pressurize air to be released into the upper chamber containing the projectile.

An in-stock compressed fluid cartridge system to be used in a gas powered airsoft gun. The compressed fluid cartridge may be supplied fluid to a multi-stage expansion chamber configured to depressurize the fluid into gas and prevent fluid from reaching a downstream pressure regulator. The compressed fluid cartridge may be engaged and disengaged with the in-stock system by turning a thread-less quick release end cap that allows rapid replacement of the cartridges.

A pneumatic regulator assembly for a paintball marker includes a first body portion with a connector at one end for attachment to a paintball marker, a second body portion with a connector at one end for attachment to a compressed air canister, and a collar coupled between the two body portions at ends opposite the connectors for each. The collar allows the second body to rotate relative to the first body portion.

A pneumatic regulator assembly for a paintball marker includes a first body portion with a connector at one end for attachment to a paintball marker, a second body portion with a connector at one end for attachment to a compressed air canister, and a collar coupled between the two body portions at ends opposite the connectors for each. The collar allows the second body to rotate relative to the first body portion.

An gas supply system for use with an airsoft gun to power a pneumatic engine contained within a receiver of the airsoft gun. The gas supply system includes a bottle of pressurized gas that supplies pressurized gas at a first pressure to the receiver. A pressure regulator is located between the supply of pressurized gas and the pneumatic drive engine and operates to reduce the pressure of the gas from the first pressure to a second pressure. The pressure regulator is supported on the airsoft gun and allows the pressure of gas supplied to the pneumatic engine of the airsoft gun to be regulated. The pressure regulator includes an adjustment dial that allows an operator to change the pressure of gas supplied to the airsoft gun. The pressure regulator can be located between the bottle of pressurized gas and the receiver.

A compressed gas gun comprising a chassis, a pellet firing assembly including a breech and a slidable bolt mounted in the chassis, a valve assembly mounted in the chassis, a barrel assembly comprising a barrel, a grip for holding the gun, a trigger assembly comprising a trigger, and a magazine receiver for holding a removable magazine for storing pellets.

A canister of propellant releasably mounted in a stock of an airsoft gun includes a head threadedly secured to a first end of a case and including an intermediate annular groove; a plug threadedly fastened in the head and including first, second, and third O-rings; a plunger disposed through the plug into the head and including a first receptacle, a lateral first opening through the first receptacle, a second receptacle, a lateral second opening through the second receptacle, and an annular flange; a cap threadedly secured to plug and including a bottom opening communicating with the case, and a biasing member biased between a bottom and the flange; a passage member threadedly secured to the case; and a check valve threadedly fastened in the passage member.

A canister of propellant releasably mounted in a stock of an airsoft gun includes a head threadedly secured to a first end of a case and including an intermediate annular groove; a plug threadedly fastened in the head and including first, second, and third O-rings; a plunger disposed through the plug into the head and including a first receptacle, a lateral first opening through the first receptacle, a second receptacle, a lateral second opening through the second receptacle, and an annular flange; a cap threadedly secured to plug and including a bottom opening communicating with the case, and a biasing member biased between a bottom and the flange; a passage member threadedly secured to the case; and a check valve threadedly fastened in the passage member.

A gas-powered gun comprising an inner barrel (31), a compartment (40) for compressed gas formed coaxially around the inner barrel (31), a pressure regulator (42) connected between the compartment (40) and a pressure chamber (10), so as to ensure a controlled pressure in the pressure chamber (10), and a valve (15) arranged to release compressed gas from the pressure chamber (10) to thereby discharge a projectile (13) provided in said inner barrel (31). The gas-powered gun further comprises a plenum chamber (70) in fluid connection with the pressure chamber (10), the plenum chamber being formed in a detachable module (7) arranged below the barrel during normal use.