The SGA is an adaptable stock for the Mossberg 500/590/590A1 12 gauge shotguns, designed with a wide range of customizable features and accessories to meet individual end-user needs. The M-LOK Forend is a simple, lightweight forend for 500/590/590A1 12 gauge shotguns with 7-5/8" action tube assemblies, designed to provide much-needed adaptability with the attachment of optional M-LOK accessories and mounts. NOTE: The Mossberg forend in the sets will NOT fit the Mossberg 500 with 6-1/2" action tube assembly or the Maverick or current production Mossberg 500 synthetic with pinned-in action tube assembly without replacing with the 7-5/8" action tube assembly. Mfg: Magpul
