Bushmaster A2 upper with 20" Fluted 1:9 heavy barrel. It has standard handguards, A2 flash hider, and bayonet lug. This is a factory Bushmaster upper, not pieced together with a BM barrel. It is used but in excellent condition. No b/c/ch. $350 shipped. IM or E-mail me with questions of if you would like pics. Thanks for looking!