It is compatible with find Mossberg add-ons which include shares, grips, sights and rails (NOTE: It's not suitable with proper handed accessory barrels.) It includes entire inventory and accent Pistol Grip kit. It's dual extractors, optimistic steel to metal lockup, twin action bars, and an anti-jam elevator to guarantee clean https://mossberg-50002345.tribunablog.com/mossberg-500-shotgun-options-27574854