Current production Colt commercial upper, that does not have Colt’s CAGE code marked above the forward assist. Has factory M4 feedramps and gray dry lube inside the upper receiver. Correct Colt engraved and white painted T numbers on the MIL-STD-1913 rail. New take off condition. They may or many not have an M4 stamped above the gas tube hole.
These will have a keyhole or square forge code. No choice.
These uppers are identical in every way to a Colt military upper but do not have the military markings. It gives you the opportunity to save some money. Does not include the ejection port cover or forward assist assemblies.