The Mossberg 500 is one of the most popular pump-action shotguns ever made. That doesn’t keep the company from making updates and improvements, as evidenced in the new-for-2025 590M Standoff and ...

Spitfire Armory has launched a new MX Ghost Ring Sight System that transforms a Mossberg 500, 590, 590A and 930 shotgun(s) into a precision firing weapon.