HD QUAD RAIL PISTOL Description
5.56 NATO, .300 AAC Blackout, or 7.62x39mm cal., 7 1/2 (5.56 NATO), 8 1/2 (.300 AAC Blackout), or 10 1/2 (7.62x39mm or .300 AAC Blackout) in. chrome moly high-end barrel with black Melonite finish, threaded muzzle, A2 flash hider, low profile gas block, pistol length gas system, Mil-Spec parts, AR-15 pistol buffer tube, single point sling attachment, M4 feed ramp flat-top upper receiver, HD quad rail free float 7 or 10 in. handguard without end cap, with or w/o Shockwave stabilizer, black anodized finish. Disc. 2019.