Colt's Manufacturing, Upper, 223REM/556NATO, Black Finish, Dust Cover, Forward Assist, M4 Feed Ramps. Not C marked
AS OF 2/11/24 COLT IS NOT MARKING WITH A CAGE CODE.  THESE HAVE THE FORGE MARK ONLY
Will be Brass Alum Forge (Square) or Cerro Forge (Keyhole).  
May show handling marks/dings from factory and Colts shipping practices. If this is a concern, do not buy. We will not refund or exchange.