Mossberg 590M, Mag-Fed, Pump Action Shotgun, 18.5 Barrel, Heat Shield, 2.75 Chamber, AccuChoke, Black Finish, Synthetic Stock, Ghost-Ring Sights, 10Rd Detachable Magazine 50206 For home security, tactical, and competition applications, 590M Mag-Fed pump-actions offer many practical advantages: Faster reloading/unloading, increased capacity without additional magazine tube length, and quick and easy transitioning between various types of loads.