Combination anti-rotation and counter-recoil device for a sub-caliber barrel positioned inside a larger caliber gun barrel

摘要

A combination anti-rotation and counter-recoil device for a sub-caliber barrel positioned inside a larger caliber barrel gun which utilizes a plate attached to the flat base of the tubular member simulating the cartridge case within the larger caliber gun and is held in position by two arms preventing rotation of said member and also a spring loaded piston is provided which engages an opening in the plate which provides for counter-recoil force after each firing.