Rock River arms is excited to offer a new AR-15 variant designed specifically to shoot the .450 Bushmaster cartridge. This particular model comes standard with a 16" chrome moly barrel and a RRA Operator Brake. The receiver is made from forged aluminum with a hard coat anodized finish. A Rock River Arms 13" Extended Lightweight free float rail features a full length picatinny rail and a M-LOK compatible system located at the 3, 6, and 9 o'clock positions. A carbine A2 pistol grip and 7 round Ar-15 .450 bushmaster magazine round out the list of features. This rifle features a black finish.
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