Barrel - Length- 10.5� Medium Contour Stainless Steel 5.56 1/7 Polygonal Twist cold hammer forged chrome lined 1/7 twist or 300BLK stainless with 1/7 twist - Gas block- Lo-Pro .750 pinned to barrel - Barrel extension w/extended feed ramps - Upper Receiver - Model- Gen I forged flat-top receiver w/extended feed ramps - Finish- Hardcoat Anodizing type III - Charging Handle- Noveske marked Radian Raptor ambidextrous - Shot peened & MP tested bolt - Auto carrier w/staked carrier key - Lower Receiver - Model- Gen I forged receiver - Finish- Hardcoat anodizing type III - Trigger- ALG Defense ACT - Extension- Mil-spec 6 position receiver extension - Staked Noveske QD End Plate - Handguard - NSR-9� (Keymod & M-LOK) Free Floating Handguard - Furniture - Noveske marked SB Tactical SBA3 Pistol Brace - Grip- Magpul MOE - Accessories - One 30 Rnd. Magazine - Caliber: 300BLK - Barrel: Stainless - Gas System: Pistol - Buffer: H2 - Mounting System: M-LOK - Muzzle Device: A2