So light and well balanced that it actually can beheld like a pistol, a three-why weapon devised by, the inventor of the Johnson semi-automatic rifle, can be.used as a single-shot rifle, a semi-automatic, rifle or a machine gun. It Is converted simply by flipping a thumb lever. Assembling the gun takes but a few minutes. To load 1t, a clip of five shells at a time is inserted in the magazine, or the magazine cart be loaded before being placed in the gun. It weighs only twelve and one-half pounds. Disregarding the time required for changing the magazines, the gun can fire 200 shots per minute at a muzzle velocity of 2,700 feet per second. The barrel is interchangable.