Similar to the Gen II, but with Direct Impingement (DI) lengthened gas system for reliability with or without a suppressor. Available in 5.56 NATO, 6.8 SPC, and 300 BLK. Receivers are 7075-T6 aluminum coated in Type 3 Class 2 hardcoat anodizing, then finished with Cerakote. Magpul furniture, custom Radian Raptor ambidextrous charging handle, Geissele or ALG Defense trigger, and extended slimline Barrett hand guard with Magpul M-LOK accessory mounting slots. 16" Carbine rifling twist rates are 1:7 for 5.56 NATO; 1:10 for 6.8 SPC; and 1:7 for 300 Blackout. Weight, about 6.2 pounds. OAL is 36". SBR and Pistol have 10.25" barrels with 1:7 twist in 5.56 NATO and 300 BLK. OAL length for both is 26.2"; weigh about 5.5 lbs.