This is a very scarce and desirable M16A2 Carbine with the desirable short 10 1/2 inch "Commando" length barrel. This example has the transitional M16A1 upper receiver with the tear-drop forward assist, and the two position flip rear sight, combined with the M16A2 lower. It is fitted with a standard weight, 10 1/2 inch long chrome lined barrel with a M16A1 style birdcage flash hider. The front of the barrel is stamped "CMP C", and although not marked, it is probably the older standard 1-12 twist rate. It has the late pattern lower receiver that is marked "COLT/M16 A2/CAL. 5.56MM" over the serial number". It also has the raised fence around the magazine release button, and the reinforced rear receiver ring. It is fitted with the very scarce, albeit short lived "three shot burst" fire control mechanism. Both side of the receiver are correctly marked with the ambidextrous marking of "SAFE/SEMI/BURST". It is fitted with the correct short, ribbed, round "commando" length black plastic handguard, black plastic standard pistol grip with the early style, two position sliding aluminum buttstock. Magazine absent.