Spitfire Armory's new MX Ghost Ring Sight System that transforms a Mossberg 500, 590, 590A and 930 shotgun(s) into a precision firing weapon. This sight system has obvious hunting applications ...

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. Minneapolis, MN USA – Spitfire Armory ...

Mossberg optics-ready models have a receiver cutout for direct mounting of electronic sights. The flagship model of Mossberg’s shotgun line, the 940 JM Pro has been upgraded to be optics ready.