[Last Edit: 2/9/2006 9:38:45 AM EDT by Dont-Tread-On-Me]
This is a take off from my Colt LE6520. It is an A2 upper, with forward assist and ejection port cover. This upper receiver has M4 feedramps, but they are not anodized. This was how it came from Colt. The ejection port cover has the black colored spring that Colt uses. There is no "C" marking on this upper, but there is a "key-hole" symbol for Cerro Forge. Has the standard A2 rear sight. This is a standard pin size upper.
This receiver has never been shot, it is new. It was taken off when I got the rifle because I switched to an A3 flattop from the get go. This might be the only A2 upper out there with M4 ramps.