Air gun, as a pistol or rifle, has a tubular sleeve coaxially around the barrel for the air/gas compression piston moving to the rear on firing

摘要

The air gun, as a pistol or rifle, uses air or gas compressed by a piston (86) which moves against the direction of pellet travel on firing. A tubular sleeve (52) is coaxial around the barrel (84), with a coil piston spring (80) between them to act on the cylindrical or ring piston moving in the gap between the sleeve and the barrel.