Brand: CMMGModel: Dissent MK4Caliber .300 BlkOperating System Compact Action-direct ImpingementBarrel Length 10.5Barrel Twist 1:7Barrel Contour MtBarrel Material 4140cm, SbnBarrel Twist 1:7Muzzle Device Cmmg Zeroed Linear CompensatorMuzzle Thread 5/8 X 24Gas Port Location PistolGas Block Adjustable .750"Upper Receiver Dissent 7075 T6 AluminumLower Receiver Mk4 Forged 7075 T6 AluminumHand Guard Cmmg 5.5" ProprietaryFinish CerakoteCharging Handle Dissent Side Charger - LeftPistol Grip Cmmg Zeroed Pistol GripBuffer Type N/aReceiver Extension 1913 Picatinny Rail End CapTrigger Type Triggertech Ar-d 2-stageTrigger Guard Cmmg Zeroed Trigger GuardSafety Selector Cmmg Zeroed 60/90 DegreeMagazine Magpul 300blk 30rd PmagWeight 4.8 LbsLength 14.7"