Developed in the 1980s as a joint venture between Colt and Diemaco (later known as Colt Canada), the M16 LMG was an evolution of prior concepts in making a M16 variant that could fill the squad automatic weapon role in an infantry unit, capable of running on both extended drum magazines and, in event of need, standard STANAG-profile magazines. Later variants of the M16 LMG would be adopted by the Canadian military as the C7 Light Support Weapon as well as by the Netherlands and Denmark. Using the M16A1 and M16A2 as a base, the external profile and general handling of the weapon is very similar to typical the M16, though several critical differences are present. The barrel measures in at over .9 inches in external diameter, and is fitted with an A2 style flash hider, M60 style bipod, A-profile front sight base (sans bayonet lug) and an oversized rectangular handguard that contains mounting points for a folding carry handle (included) and vertical foregrip (absent). The upper receiver is properly without a forward assist, with a large casing deflector and an A2 pattern rear sight. The lower receiver has the "COLT/M16/LMG" nomenclature above the caliber and serial number on the left side of the magazine well, Colt address between the bolt catch and sear pin, extended bolt catch that can be disengaged by hitting the magazine catch, right handed selector switch with "SAFE" and "FIRE" markings, checkered pistol grip and a fixed buttstock with checkered trapdoor buttplate. Internally, the weapon is configured for open bolt full auto only operation; in contrast to standard M16/AR15 design, the bolt carrier and hammer are configured to hold the bolt back in the open position when the trigger is released, and a compound hinged auto sear allows the hammer to retract slightly when the trigger is pulled, releasing the bolt but not dropping the hammer until the bolt is fully in battery, and an additional hydraulic recoil mechanism is integrated into the buffer mechanism.

Excellent, with 98% plus original matte gray phosphate finish, showing minor wear and handling marks overall, including some minor wear on the furniture. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 479.