General Dynamics XM806 (LW50MG)

History

The XM806 was originally developed as a heavy-duty, belt-driven "light" machine gun for the U.S. Army as a possible replacement for the legendary Browning M2 line of heavy machine guns. The program was directed by General Dynamics and received the long-form designation "Lightweight .50 Caliber Machine Gun" (LW50MG). The new gun succeeds the discontinued XM312, itself intended to replace the venerable Browning M2.

The XM806 was developed using the same principles before the program was completely discontinued in July 2012.

The XM806 weighs about 40 lbs without the tripod assembly and is equipped for . 50 BMG cartridges. The rate of fire is 265 rounds per minute, and when depressed, the gun can achieve a sustained rate of fire of 40 rounds per minute. Specially designed M145 optics are supported, although iron sights are standard. Optics can be attached via Picatinny rails located above the receiver. The charging handle is mounted on the right side of the rectangular receiver, and there is a barrel change handle on the left side.

Replacing the barrels is a must for this air-cooled weapon, lest they crack or deform from the heat from each successive shot. The muzzle is sealed with a conical muzzle flash suppressor, and the weapon is operated by a traditional spade grip at the rear.

While the XM806 was expected to be a battlefield system, planning delays and eventual disinterest led to its discontinuation. In return, the U.S. Army popularized the M2A1 designation for the Browning M2 series, which brought the use of the Quick Change Barrel (QCB), reduced muzzle flash, and other improvements over the original long-life weapon.

About 45,000 M2s are expected to be "modernized" to the new M2A1 standard.

Specification

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Dimensions

Performance

Changes