9mm Para. or 5.56 NATO cal., GIO (5.56 NATO) or blowback operated (9mm Para.), 7.5 in. Nitride finished barrel with takedown system, T-flash muzzle brake, 17 shot Glock mag. or 30 shot Mil-Spec AR-15 mag., Mil-Spec forged aluminum receivers, Diamondhead alloy Integrated Sighting System, Law Tactical AR folding Gen 3-M adapter, Gear Head Works adj. tailhook Mod 2 (disc.) or SB Tactical SBA3 pistol brace, VRS T Series 4 free floating handguard, A2 grip, Mil-Spec safety, black Nitride finished BCG, LRBHO (9mm Para. cal.), Type III hardcoat anodized black finish. Mfg. 2019-2021.