Details – Barrel Length: 16 – Barrel Material: 4150V Chrome Moly Vanadium Steel – Barrel Finish: Phosphate – Barrel Profile: M4 – Chamber: 5.56 NATO – Twist Rate: 1 in 7 – Extension: M4 – Gas System: Carbine-Length – Gas Block Type: Low Profile .750 Diameter – Upper Receiver: Forged 7075 T6 Aluminum – Receiver Style: M4 Flat top with feed ramps – Receiver Finish: Hardcoat Anodized – Forward Assist: No – Dust Cover: No – Handguard Style: DPMS M-Lok Free Float Rail – 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: AR-15 Mil-Spec Fire Control Group – Buffer Tube: 7075 T6 Aluminum Mil-Spec Tube – Adjustment: 6-position collapsible – Stock: PSA Classic Carbine Stock – Magazine: (1) 30-Round Magazine (where available by law) – Weight: 7 Lbs – Length: 32