Chamberings: 223 Wylde, 6mm ARC, 300 BLK. Match-grade 416R stainless steel barrel, w/wo flutes. 14.5”, 16”, 17.5”, 18” (6 ARC): Muzzle threads: 1/2x28 (223 Wylde) or 5/8x24 (300 BLK and 6 ARC). Billet upper receiver w/ M4 feed ramps. Proprietary M-LOK extended aluminum hand guard. Enhanced black-nitride M16 bolt-carrier group, lightweight forward assist. Radian Raptor-SD suppressor-optimized ambidextrous charging handle. Direct-impingement gas system. Upper receiver, lower receiver and hand guard Cerakoted together for perfect color match. Integral triggerguard and flared magazine well. Radian Vertex-CBX trigger. Six-position receiver extension w/ QD end plate and H2 carbine buffer. Magpul stock, K2 pistol grip, Magpul PMag 30 AR/M4 Gen M3 window magazine. A-DAC lower allows bolt lock back while shooter holds the magazine release. Ambidextrous controls, sub-MOA accuracy guarantee w/Black Hills match grade ammunition. Weight: 6.0-8.0 lbs. Designed and manufactured in Redmond, Oregon.