XS Sight Systems Shotrail Ghost Ring & Standard Dot White Shotgun Sights Mossberg 500 590 930 Matte Black Standard MB-4000R-1. Rail Is Constructed From Annodized Aluminum and Is Compatible With Weaver and Picatinny Rings. Ghost Ring Rear Is...
XS Sight Systems Shotrail Ghost Ring & Standard Dot White Shotgun Sights Mossberg 500 590 930 Matte Black Standard MB-4000R-1. Rail Is Constructed From Annodized Aluminum and Is Compatible With Weaver and Picatinny Rings. Ghost Ring Rear Is...