This new Colt Gov’t Carbine M4 A2 upper features M4 feedramps, A2 sights, 16″ LTWT 1/7 barrel, sling swivel, removable A2 flashhider, carbine handguards, charging handle, forward assist, shell deflector and all Colt, NO BAYONET LUG, no bolt and carrier (complete upper minus the bolt and carrier).
Upper Markings: upper receiver C MB, 4, barrel C MP 5.56 NATO 1/7, 2/95, O stamp.
Note: This upper came to us from Colt without a bolt and carrier. We usually have some take-off bolt and carriers if you would like to add one to this upper. Just let us know.