STT-15 6ARC/STT-15 6ARC LITE RIFLE
6mm ARC cal., 18 in. Proof Research carbon fiber barrel, single stage match trigger, Magpul MBUS Pro sights, Magpul CTR stock and MOE+ grip, slick sided billet matched receivers, STT-15 16 in. M-LOK rail, extended feed ramps, suppressor opt...