Patent ID: 7766000

Claim:
An air gun adapted for use with a compressed gas source providing a compressed gas, the air gun comprising: an air gun main body including an inner barrel, a valve body, and a blowback mechanism operative to shoot a bullet and to perform blowback using the compressed gas, wherein the valve body is provided with a valve body air chamber that can be sealed to contain the compressed gas supplied from the compressed gas source, and a discharge valve that can move in a longitudinal direction to and between a muzzle end side and a gun rear end side in the valve body air chamber, the discharge valve has a valve through hole extending therethrough from the muzzle end side to the gun rear end side, and a gas inlet port that can open and close the valve body air chamber and the valve through hole by the movement of the discharge valve in the longitudinal direction from the muzzle end side to the gun rear end side, and the blowback mechanism moves the discharge valve towards the gun rear end side by retreat of the inner barrel, opens the gas inlet port of the discharge valve and causes the compressed gas to blow into the valve through hole from the valve body air chamber to shoot the bullet and perform blowback.