A b.a.r gun is a light machine gun and it originally came from U.S.A.
The b.a.r was originally called M1917 machine gun.
The Thompson 1928 is a sub-machine gun, it was used but law enforcement officers and criminals.
The M1911 is a single-action, semi-automatic pistol (handgun) chambered for the .45 ACP cartridge. It was designed by John M. Browning, and was the standard-issue side arm for the United States armed forces from 1911 to 1985, and is still carried by some U.S. forces.