The Thompson submachine gun and the M3 submachine gun, two classic submachine guns (SMGs), helped American GIs win World War II. Both fired the same powerful and ever-beloved .45 ACP (Automatic Colt ...
The semi-automatic pistol, chambered for ... recommending they use the bolt-action Springfield 1903 instead. The M3 submachine gun, or “Grease Gun,” as it was commonly known, was developed ...