The DD Arms DD Combat is an AR-style semi-automatic shotgun with a quad-rail aluminum forend, M-LOK side panels, adjustable AR-15 stock, and an 18.5-inch barrel. A domestically built AR-pattern shotgun targeting the tactical home defense market. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 5 Year introduced: 2019, USA Weight: 8.5 oz Overall length: 37" Status: Active Intended use: Home Defense, Tactical