This is a custom upper that shoots under 1 M.O.A. with match ammo. It is a Bushmaster Flat top upper and bolt, with a Hart 20" stainless fluted heavy barrel. The barrel has been threaded to accept your favorite comp and it comes with a Tasco rubber coated 3-9 variable scope. the same one that used to come with the old colts. I want $700.00 for the whole set or may be interested in a trade, let me know what ar-related things you have to trade.