Caliber: .308 Win. Capacity: 20-round, .308 magazines. Barrel: 18 in., 1:10 twist, 5/8x24 tpi muzzle threads, RF-MS Compensator. Upper/Lower Receivers: 7075 T6 billet aluminum, DPMS Pattern High, Type III anodizing with forward assist and dust cover. Stock: Mission First Tactical Minimalist. Sights: None, full length top rail. Weight: NA. Trigger: Mil-Std. Length: 33-37.5 in. Features: Mid-length gas system, M-LOK Thin Rail Handguard, 15 in. Discontinued.