DPMS 5.56 M-Lok Rifle Features The DPMS 5.56 M-Lok Rifle runs a full-auto profile bolt carrier group with a shot-peened mil-spec Carpenter 158 steel bolt hardened to USGI specifications at the gas key and staked per mil-spec for long-term durability under sustained use. The 8620 steel M16 profile carrier is chrome lined and phosphate coated which resists fouling buildup and eases cleaning after a heavy range session. A low-profile .750 diameter gas block paired with the carbine-length gas system keeps the rifle s operating impulse smooth and the handguard profile slim. The M4 feed ramp upper includes a forward assist and dust cover standard mil-spec features that add reliability and keep the action protected from debris. The forged 7075-T6 lower is marked MULTI for caliber flexibility and finished in hard-coat anodized Black to match the upper giving the rifle a consistent durable look and finish. A 6-position adjustable buffer tube and collapsible carbine stock let the shooter dial in length of pull for different body types or added gear like body armor. The rifle ships complete with an A2 pistol grip a mil-spec AR-15 fire control group and one 30-round magazine where allowed by law so it is ready to shoot out of the box. Backed by mil-spec USA manufacturing on the upper receiver the DPMS 5.56 M-Lok Rifle gives range shooters and home defenders a dependable accessory-ready AR-15 platform. DPMS 5.56 M-Lok Rifle Specifications Brand: DPMS Model: 5.56 M-Lok Rifle Type: Semi Auto Rifle Caliber: 5.56 NATO Capacity: 30 Action: Semi-Auto Barrel Length: 16 Barrel Material: 4150V Chrome Moly Vanadium Steel Barrel Finish: Phosphate Barrel Profile: M4 Twist Rate: 1:7 Gas System: Carbine Length Gas Block: Low Profile .750 Handguard: 13.5 M-Lok Free Float Upper Receiver: Forged 7075-T6 Aluminum Receiver Finish: Hardcoat Anodized Lower Receiver: Forged 7075-T6 Aluminum Bolt Carrier Group: Full-Auto Profile Carpenter 158 Steel Stock: 6-Position Collapsible Carbine Stock Grip: A2 Front Sight: None Rear Sight: None Weight: 7 lbs Overall Length: 32 Available At: GrabAGun