The XM312 is a heavy machine gun derived from the XM307 25 mm autocannon and chambered for the .50 BMG cartridge. It was designed in response to a request by the U.S. military for a replacement for the aging M2 Browning heavy machine gun, and as a complement to the heavier XM307 Advanced Crew Served Weapon grenade launcher.

May 12, 2021 · Page details technical specifications, development, and operational history of the General Dynamics XM312 Prototype Heavy Machine Gun (HMG) including pictures.

There is no doubt that the XM312 is a futuristic weapon and the next logical evolution of the heavy machine gun platform. The weapon's physical characteristics include a smooth contoured receiver with a molded casing.

The described version of the XM312 "lightweight heavy machine gun" (sounds weird, huh?) is being developed by the General Dynamics, a huge US-based defense company. TheXM312 is based on the 25mm XM307, but without its comprehensive and expensive explosive ammo and fire control it is much cheaper and could be finalized much faster.

Jul 7, 2011 · The XM312, developed by General Dynamics Armament and Technical Products, is a lightweight, portable 12.7mm/.50 caliber machine gun that provides increased accuracy, effectiveness,...

The system included: a 25mm automatic cannon (XM307) capable of firing airburst and armor piercing ammunition; and, a .50 caliber variant (XM312).

The XM312 is a heavy machine gun derived from the XM307 25 mm autocannon and chambered for the .50 BMG cartridge. It was designed in response to a request by the U.S. military for a replacement for the aging M2HB heavy machine gun, and as a complement to the heavier XM307 Advanced Crew Served Weapon .

xm312是一款發射12.7×99毫米nato（.50 bmg）口徑的重機槍，亦是xm307 25毫米自動榴彈發射器的衍生產品 [1] 。 XM312主要用於取代在美軍服役已久的 白朗寧M2重機槍 ，因此XM312的設計針對M2的缺點而作改進，但射速遠低於M2令美軍不甚滿意。

The XM312 was a developmental lightweight heavy machine gun developed by General Dynamics in response to the U.S. military's request for a replacement of the M2 Browning, and as a complement and fallback to the XM307 ACSW grenade launcher.

Nov 20, 2003 · The XM312 is a lightweight, low-recoil gun that mounts on vehicles and tripods and fires standard .50-caliber cartridges, including tracers, armor-piercing incendiaries, and sabot...