The Flame Thrower Tank M67 (also known as the M67 "Zippo") is an American flame tank used by the U.S. Army and U.S. Marine Corps during the Vietnam War. The tank's crew consists of a driver, gunner, and commander. Its main armament is an M7-6 tank flamethrower, its secondary armaments consist of a single M2 Browning 50. Caliber Heavy Machine Gun and a single M1919A4 Browning 30. Caliber Medium Machine Gun. It's powered by a Continental AV-1790-5B V12, air-cooled carburetor petrol engine.