Current current production Colt commercial upper, that does not have Colt’s CAGE code marked above the forward assist. Has factory M4 feedramps and dry lube inside the upper receiver. Correct Colt engraved and white painted T numbers on the MIL-STD-1913 rail. New condition.
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.