Barrel Length: 18″Barrel Material: 416R Stainless SteelBarrel Profile: A2 StyleChamber: .308 WINTwist Rate: 1 in 10?Extension: M4Gas System: Mid-LengthGas Block Type: Low-profile 5 position click switch adjustable gas blockUpper Receiver: Forged 7075 T6 AluminumReceiver Style: PA10 Flat top with Feed RampsReceiver Finish: Hardcoat AnodizedForward Assist: YesDust Cover: YesHandguard Type: DPMS 15″ M-Lok Free Float Rail with Anti-slip and anti-rotation featuresBolt Carrier Group: Yes, Toolcraft PA10 BCG with extra power extractor springStaked Gas Key: YesLower Receiver: Forged 7075 T6 AluminumReceiver Finish: Hardcoat AnodizedFire Control Group: Panther Polished Trigger (PPT)Buffer Tube: 7075 T6 AluminumAdjustment: 6-position telescoping stockStock: Magpul MOE Carbine Stock, BlackGrip: DPMS Custom Overmolded A2 Grip, BlackMagazine: 20 Round PMAGFeatures: Stainless Steel 15″ M-Lok MO, Magpul MOE Carbine Stock