Tags: Weapon.
The Colt Machine Gun-1 or CMG-1 was an open bolt belt-fed machine gun that fired 5.56x45mm cartridges designed by Colt Manufacturing Company in 1965. Colt hastily developed the CMG-1 to complement the CAR-15 a Colt branding of the M16 rifle so that Colt might offer both of them as an alternative to the Stoner 63 weapons system.