|Machine Gun, 7.62mm, M133|
|Type||Gatling-type machine gun|
|Place of origin||United States|
|Manufacturer||General Electric, Garwood Industries , Dillon Aero, DeGroat Tactical Armaments, McNally Industries LLC|
|Caliber||7.62 mm (0.308 in)|
The XM133 is a gas-operated machine-gun. It is nearly identical to the M134 but has barrels with ports that align with the piston drive in the center of the barrel cluster.
- United States, 1969. p. B-2.