Brownells Assembled Upper Receiver & Ar-15 5.56mm Nato Hbar Barrel

We
This perfect combination is made up of the Rock River Arms AR-15 A4 forged upper receiver assembly and the Critical Capabilities AR-15 HBAR barrel. A bundle that offers savings, performance and makes your next build all that much easier. 16″ Chrome Moly Barrel with HBAR contour .750 Diameter Gas Port 1/2×28 TPI Forged Aluminum Upper Receiver w/ M4 Feed Ramps Ejection Port Cover and Forward Assist Installed This merger is a great option if wanting to begin your next AR-15 build with quality components that are already assembled. Mfg: Brownells HBAR Contour .750″ Diameter For Your Gas Block Made From Chrome Moly with a Black Phosphate Finish 1-8″ Twist Carbine Length Gas System 1/2-28 Threads