GMG Mossberg® Weaver® / Picatinny Scope Mount... add optics to your shotgun when you add this rail!
This Optic Rail fits Mossberg® 500/590 shotguns and allows you to mount a sight or scope to your firearm. Mounts to the top of your receiver and fits pre-drilled shotguns. Mounting screws included.
Improve your sighting with your shotgun when you order ONLINE now!