Features – Barrel: Chrome-moly vanadium steel barrel chambered in 5.56 NATO with a 1:7 twist rate M4 barrel extension and a pistol-length gas system. The nitrided barrel is finished off with a 4 knurled tube free-float handguard R-marked front sight gas block and an A2 flash hider. – Upper: Forged 7075-T6 C7 AR upper is machined to MIL-SPECS and hard coat anodized. Uppers include forward assist dust cover and A1 rear sight appature. – Bolt Carrier Group: Shot-peened mil-spec Carpenter 158 steel bolt. Gas Key Hardened to USGI Specifications fastened with Grade 8 screws and Staked Per Mil-Spec. Carrier is 8620 steel M-16 full auto profile and is chrome lined and phosphate coated. – Lower: These forged lowers are quality made using 7075-T6 aluminum and are marked MULTI for the caliber. Finish is hard-coat anodized. The Mil-spec diameter 7075-T6 buffer tube is hard-coat anodized has 6 adjustment positions and is fitted with a DPMS CAR style blade pistol brace. The pistol is finished off with a DPMS Classic A2 grip and Mil-Spec AR-15 Fire Control Group. – Details – Barrel Length: 7.5 – Barrel Material: 4150V Chrome Moly Vanadium Steel – Barrel Finish: Nitride – Barrel Profile: Heavy – Chamber: 5.56 NATO – Twist Rate: 1 in 7 – Extension: M4 – Gas System: Pistol-Length – Gas Block Type: .750 R-marked FSB – Upper Receiver: Forged 7075 T6 Aluminum – Receiver Style: C7 Carry Handle – Receiver Finish: Hardcoat Anodized – Forward Assist: Yes – Dust Cover: Yes – Handguard Style: DPMS 4 Knurled Tube – Bolt Steel: Carpenter 158 Mag Phosphate coated – Bolt Carrier Steel: 8620 Chrome Lined – Staked Gas Key: Yes – Lower Receiver: Forged 7075 T6 Aluminum – Receiver Finish: Hardcoat Anodized – Fire Control Group: DPMS Retro AR-15 Mil-Spec – Buffer Tube: 7075 T6 Aluminum Mil-Spec Tube – Adjustment: 6-position collapsible – Brace: DPMS CAR style Pistol Brace – Magazine: (1) DPMS Aluminum 30-Round Magazine