Colt early 2000s era carbine A2 upper receiver. C AF forge code with M4 feedramps. Black factory anodizing. About 85% condition. No marks from an armorer’s vice block. Great shooter grade retro upper that does not have anything wrong with it, other than being used. Perfect to build or restore a Colt AR-15 A2 AR6520, RO727, or RO738. Pictured is the actual upper you will receive. We only have this one.