- Compatible with models: Mossberg 500, 590 & 590DA etc. 12GA shotguns. WILL not work on 500 Flex guns.
- Unbreakable, waterproof, & corrosion resistant polymer shell holder.
- Mounts/Holds 6 Rounds
- Aluminum Backing Plate For Durability
- All mounting screws are included, no gunsmithing required.