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For the majority of the Vietnam war, the principal weapon of the door gunner was a medium machine gun (MG), initially, a M1919A4 .30 caliber MG, and soon thereafter, the M60 7.62mm MG became the standard helicopter door armament system.
The UH-1 Huey helicopter became a symbol of U.S. combat forces in Vietnam. 1  Contents. 2  Vietnam War: Weapons of the Air. 3  U.S. and South Vietnamese Artillery & Infantry Weapons. 4  North Vietnamese and Viet Cong Weapons in Vietnam. 5  Other Weapons Used in Vietnam. 6  Print.