The M240 family of medium machine guns has long been employed by all services of the U.S. Armed Forces. It comes in several variants and mounting configurations. These configurations include a coaxial version for armored combat vehicles, a pintle-mounted version for light tactical vehicles and rotary-wing aircraft, and bipod and tripod versions for dismounted infantry units.
The difference between the M240C and the other coaxially mounted versions is that the M240C is designed for right-side ammunition feed. This configuration is used on the M2/M3 Bradley, LAV and Stryker vehicles.
The spade-gripped M240D is the standard pintle-mounted medium machine gun for naval, vehicle and combat aircraft applications in all the branches of the U.S. military. An optional egress kit is available consisting of a buttstock, pistol grip trigger assembly and bipod to enable a vehicle’s crew to instantly convert the M240D for ground combat.
The M240H entered service on U.S. Army helicopters. This variant is equipped with dual spade grips and thumb-activated trigger systems, and it can be quickly converted for dismounted infantry use via an egress components kit that includes a bipod and conventional pistol grip trigger module.