The 870 DM Magpul replaces the traditional tube magazine with a detachable double-stack box magazine designed by Magpul. The 18.5-inch barrel and Magpul SGA stock package create a tactical pump-action with fast magazine changes. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 6 Year introduced: 2017, USA Weight: 7.5 oz Overall length: 39.5" Status: Active Intended use: Home Defense, Tactical