This is an excellent example of a very desirable original Colt Firearms Division commercially manufactured, fully automatic M16A1 rifle. These original Colt fully automatic M16 series rifles are very desirable as they were produced exactly as their military counterpart using the same military grade, factory original parts. To keep them separate and distinct from the Military weapons, they were given their own special commercial serial number designation in the 9 Million serial number range. This example was produced as a later Colt M16A1 series rifle with the forward assist on the right side of the upper receiver and the windage adjustable two-position flip rear sight. The barrel is also correctly marked "C MP CHROME BORE", and the lower receiver is marked "COLT/M16A1/CAL. 5.56 MM./9206618" on the magazine well and "COLT FIREARMS DIVISION/COLT INDUSTRIES/HARTFORD CONN./U.S.A." next to the three-position "SAFE/SEMI/AUTO" selector. Fitted with a vented triangular handguard, checkered pistol grip and fixed buttstock with storage compartment. A brown cardboard shipping box is included with what may be the original Colt foil packing material