Manufacturer: Daniel DefenseProduct Line: DDM4 PDWAction: Semi AutomaticCaliber: 300 BlackoutBarrel Length: 7\"Overall Length: 20.75\"-24.75\"Gas System: Pistol LengthBarrel Profile: S2WMuzzle Thread: 5/8x24Pistol Brace: Maxim Defense CQBWeight: 5.7 lbsCapacity: 30 1Finish: Cobalt