The 590M replaces the traditional tube magazine with a proprietary detachable box magazine available in 5, 10, 15, and 20-round capacities. The first factory pump shotgun to ship with a double-stack detachable magazine. Retains the proven 590A1 action with mil-spec heavy barrel. Type: Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 10 Year introduced: 2019, USA Weight: 118 oz Overall length: 40" Status: Active Intended use: Home Defense, Tactical, Law Enforcement