A gun is a weapon that uses the force of an explosive propellant to project a missile. The rifle and the shotgun are both long-barreled weapons used for long-range shooting; the pistol has a shorter barrel and is accurate only at relatively short ranges. The revolver has a revolving barrel that allows repeat firing. The machine gun is an automatic firearm, the first of a line of weapons including assault rifles and submachine guns. The …showed first 75 words of 640 total…

…showed last 75 words of 640 total…gun and the American weapon known as the M-3 or “grease gun” . After World War II, the United States and the Soviet Union adapted automatic rifles to the use of reduced-power bullets. The American M-16 rifle, which is widely used, can be fired accurately up to 500 yd (457 m) when hand-held and up to 800 yd (732 m) when mounted. The Soviet AK-47 Kalashnikov automatic rifle and the Israeli Uzi submachine gun are particularly effective and famous weapons.