The Shooters Box rear sling attachment is manufactured in the USA by American workers on American machines! 

 It easily mounts between the stock and receiver and provides and attachment point for either a single point sling, or it can be used as a rear attachment for a dual point conventional sling setup. Manufactured from T6 6061 Aircraft Grade Aluminum and coated in black Cerakote for ultimate durability. This mounting system is designed for right hand shooters (allows the sling to be attached to the LEFT side of the shotgun). Fits Mossberg 88 or 500 or 590 model shotguns (and clones). Mounts between stock and receiver to allow attachment of a single point sling. This will not work with the Blackhawk Knoxx Spec-Ops Recoil Compensating Stock. A longer screw (from stock to receiver) may be required. Designed for tactical use. Satisfaction guaranteed!