This is a factory Colt M4 flat top upper receiver. The receiver is complete with the factory forward assist and ejection port cover, 100% Colt. This receiver is new in perfect condition, never barreled or assembled into an upper. Color is dark grey. The receiver has the M4 feed ramps and is properly marked with "M4" above the gas tube hole and "C A" on the side.
Price is $210 shipped. I prefer Paypal, or will accept a USPS money order. No trades at this time.
The upper receiver is sold, pending receipt of the funds. Thanks.