Barrel: LaRue Tactical Stealth 14.5″ 5.56 Barrel with head-spaced BCM bolt
Handguard: Geissele Automatics 13.5″ MK8 Super Modular Rail (M-LOK)
Receiver: BCM Upper Receiver. Proper thermal-fit installation (barrel extension trued to receiver)
Gas System: Low-Profile Gas Block and BCM Mid-Length Gas Tube
Colt Carrier BCM Bolt, Radian FDE Charging Handle
