Complete 5.56 upper with an ARP 12.5" Scout profile barrel chambered in 223 Wylde, mid length gas system, ARP Superbolt, M16 carrier, Troy Ind 11" hand guard, mil-spec charging handle and an A2 flash hider.
Receiver is squared and all tolerances are inspected to offer an upper that is guaranteed to shoot very well even at 12.5" with quality ammo.