page_title: U.S. helicopter armament subsystems
section_title: Attack helicopters
hierarchical_section_title: U.S. helicopter armament subsystems / Attack helicopters
context_page_description: The United States military has developed a number of Helicopter Armament Subsystems since the early 1960s. These systems are used for offensive and defensive purposes and make use of a wide variety of weapon types including, but not limited to machine guns, grenade launchers, autocannon, and rockets. Various systems are still in use, though many have become obsolete.
caption: Schematic of the XM28, with XM129 grenade launcher on the right station and M134 machine gun on the left station, on the AH-1G helicopter
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