The Mossberg 590A1 Series is an optimized version of the renowned Mossberg 500 series, now sporting upgrades for better performance and durability. The barrel walls are considerably thicker when compared to the standards 500 shotgun models and the trigger guard and safety are now made from metal instead of polymer. Select models of the 590A1 feature ghost ring sights, multi-position sights, wood furniture, and even bayonet lugs. Additionally, the 590A1 features a clean-out magazine tube for easy cleaning and maintenance. Like the other shotguns in the 500 family, the 590A1 Mil-Spec comes standard with a set of dual extractors, twin action bars, and an anti-jam elevator. Cycling the action is remarkably short, allowing shooters to send quick follow up shots or engage multiple targets. Features of the 590A1: Heavy walled barrel Metal trigger guard and safety Select models feature ghost ring sights, multi-position sights, wood furniture, and even bayonet lugs Clean-out magazine tube Dual extractors, twin action bars, anti-jam elevator Short cycling Ambidextrous safety Mossberg 590A1 Class III Pump-Action - 6-Shot Mil Spec 12ga 14" Bbl 5+1 Black Short Barrel Shotgun 51689