The upper is black. Side by side with my Bushmaster M4 it looks exactly the same. It's a large hole I believe. Same size as the Bushy. It's been shot but doesn't look like much. I got this rifle in a trade with an LEO friend of mine out of Seattle Washington. I traded him a custom bolt gun for it. He said he got it several years ago from another LEO who carried it in a soft case in the trunk of his cruiser. It has the typical brass marks on the shell deflector but no other blemishes. I can shoot some digital pic's and email them to anyone seriously interested in it. You can check up on me at the ARFCOM Survival Forum if you like. Thats where I spend most of my time here.