DetailsBrand: DPMS Barrel Length: 11.5"Barrel Profile: A2Barrel Steel: Chrome Moly VanadiumBarrel Finish: PhosphateChrome Lining: NoMuzzle Thread Pattern: 1/2" x 28Twist Rate: 1 in 7"Barrel Extension: M4Gas System Length: CarbineDiameter at Gas Block: .750"Gas Block Type: Low-Profile Gas BlockMuzzle Device: A2 -styleReceiver Material: Forged 7075-T6Receiver Type: M4Handguard Type: DPMS 10.5" Lightweight M-LokBolt Material: Carpenter 158 SteelBolt Carrier Profile: Full AutoFire Control Group: Panther Polished Trigger (PPT)Grip: Magpul MOE Grip, BlackBuffer Tube: 7075 T6 AluminumAdjustment: 6 PositionPistol Brace: SB Tactical SBA3 Pistol Stabilizing BraceFeaturesAssembled with a 10.5" 5.56 NATO chrome moly barrel, phosphate coated, 1/7 twist, M4 barrel extension, and carbine gas system. Features a DPMS 10.5" Lightweight M-Lok rail, low-profile gas block, and A2 flash hider. Forged 7075-T6 A3 AR upper is MIL-SPEC machined and hard coat anodized, including forward assist and dust cover. Full-auto profile bolt carrier group utilizes a shot-peened, mil-spec Carpenter No. 158 steel bolt and a mil-spec staked gas key. Forged 7075-T6 aluminum lower, marked "MULTI," hard coat anodized, and fitted with a Magpul MOE Grip, SB Tactical SBA3 Pistol Stabilizing Brace, 6-position 7075 buffer tube, and DPMS Panther Polished Trigger.