Monstrum Red Dot Mount Compatible with Mossberg 500/535/590/835/Shockwave Series Shotguns | Compatible with RMR Standard Red Dots

Mossberg compatible adapter for direct mounting of red dots to Mossberg 500/535/590/835/Shockwave Series shotgun models. Available in multiple footprint patterns. Refer to compatibility chart to confirm compatibility with your red dot. Mounts directly into the factory mounting holes with no additional hardware required Package includes multiple screw sets of different lengths for compatibility between red dot manufacturers. Please use the set screws that match the depth of your red dot mounting holes. All Monstrum mount and accessory products come with a lifetime guarantee