Original A1 profile, with no shell deflector, A1 rear sight housing and proper carry handle contours. The upper starts off as a 7075 T6 aluminum forging, then is machined to mil-spec dimensions. Once machined, the upper is finished with a matte gray or matte black hard anodized finish. The gray finish mimics the original anodizing found on the early rifles. The black finish matches most modern lowers found on the market today. Upper receiver does NOT have M4 feedramps.
