This is an excellent example of a fully automatic M16A1 carbine that was manufactured by the Colt Firearms Division. These original Colt fully automatic M16 series of rifles and carbines are very desirable as they were produced exactly as their military counterpart using the same military grade, factory original parts. They were given their own special serial number designation in the 9 million range. This example was produced as a Colt M16A1 carbine with a 14.5 inch chrome lined barrel, the tear drop shaped forward assist, and the two position flip rear sight. It has the correct fully auto bolt and bolt carrier both "C" marked. The barrel is stamped: "C MP B", and the magazine well is marked "COLT/M16A1/CAL. 5.56 MM./9270217" and "COLT FIREARMS DIVISION/COLT INDUSTRIES/HARTFORD CONN./U.S.A." next to the three-position "SAFE/SEMI/AUTO" selector. It is fitted with the late style two position sliding buttstock with the short round forend.