The MOE M-LOK Forend is a drop-in replacement for the Mossberg 590 / 590A1* 12ga shotguns, featuring an extended length and front / rear hand stops for improved weapon manipulation. Now updated with M-LOK slots for compatibility with all M-LOK...

The SGA Stock is an ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried-and-true Mossberg 500 / 590 / 590A1 12-gauge series of shotguns. Its features include a spacer system for length of pull adjustment, improved grip ergonomics,...

SureShell® Polymer Carrier For Mossberg 500/590 And Mav 88 (12-GA) This SureShell Polymer Carrier system, available in a six shell configuration, features shell holders injection molded from glass filled polymer, secured to the receiver by a lightweight aluminum back plate...

Quick detachable drop-in upgrade for Mossberg 500 / 590 carries six 12 gauge shells securely for faster reload.•  Holds up to six 12G shotgun shells•  Quick detach design•  All mounting hardware included•  Black polymer (carrier)•  Black anodized aluminum (mounting plate)