The 870 DM (Detachable Magazine) replaces the traditional tube magazine with a proprietary 6-round detachable box magazine. 18.5-inch cylinder-bore barrel in synthetic stock. Designed to offer faster reloading than tube-fed pump-actions. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 6 Year introduced: 2017, USA Weight: 199 oz Overall length: 38.5" Status: Discontinued Intended use: Home Defense