Reloading & unloading convenience using compact, interchangeable magazines.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 (when using designated magazines). Full magazines are the center of gravity point, making the 590M shotgun easy to balance for greater accuracy. The 590M is designed around the Mossberg 590,® the choice of tactical users worldwide and time-tested over decades of dependable service. The features Mossberg tactical pump users expect are all there: Dual extractors, Twin action bars, Positive steel-to-steel lockup, Drilled and tapped receiver, Ambidextrous safety, and a Heavy-walled barrel.