M240

The M240, officially the Machine Gun, 7.62 mm, M240, is the US military designation for the FN MAG ("Mitrailleuse A Gaz" = Gas operated machine gun; alternatively, "Mitrailleuse d'Appui General" = machine gun, support, general) a family of belt-fed, gas-operated medium machine guns that chamber the 7.62×51mm NATO cartridge.

The M240 was used by the United States Armed Forces since the late 1970s. It was used extensively by infantry, most often in rifle companies, as well as on ground vehicles, watercraft and aircraft. Despite being heavier than some comparable weapons it was highly regarded for reliability and its standardization among NATO members was a major advantage.

All variants are fed from disintegrating belts and are capable of firing most types of 7.62 mm (.30 cal) NATO ammunition. M240 variants can be converted to use non-disintegrating belts.