AS OF 2/11/24 COLT IS NOT MARKING WITH A CAGE CODE.  THESE HAVE THE FORGE MARK ONLY

(1) NEW Genuine Colt M4 upper receiver. Black anodized finish, dust dover, forward assist, M4 feed ramps, white T marks, dry film lubed.  Will be either Brass Alum Forge (Square) or Cerro Forge (Keyhole).  

 

UPC
MFG Colt
MODEL Colt M4 Upper Receiver
TITLE Colt M4 Upper Receiver

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