The Mossberg 590A1 Tactical Pump-Action Shotgun provides a fast handling weapon for personal defense with a synthetic stock that can be relied on in extreme conditions. with an XS ghost-ring sights, providing rapid sight acquisition while maintaining wide situational awareness. It is the U.S. Military's choice for combat attests to the design's reliable function and durability. The design incorporates dual extractors, dual action bars, and an anti-jam shell elevator. The bolt locks into a barrel extension by means of a top lug to provide solid steel-to-steel lock-up.