The exclusive first release of the HUXWRX Flash Hider-QD 556 1/2×28 XL 13.7″ muzzle device pin and welded onto our 13.7″ upper receiver group variants in M89 or L89 flavor. This receiver is manufactured with strict quality control, plus features an ejection port cover, forward assist, and an integral Picatinny rail that extends the length of the handguard. There is a combat-grade barrel at the heart of the upper receiver group, which is magnetic particle inspected and high-pressure tested. A first-to-market, HUXWRX Flash Hider-QD 556 1/2×28 XL 13.7″ to bring this to a 16″ length after the pin and weld.