Mossberg 500/590 12 Gauge Collapsible Stock with Forearm
This stock assembly provides the Mossberg model 500/590 12 gauge pump shotgun with a AR-15 M4 (6) position collapsible stock and tactical pistol grip. The set also includes a polymer forearm with Picatinny rails and a removable vertical foregrip. Up to six additional shotshells can be carried on the stock with the removable shell holders. Constructed from injection molded black polymer. All mounting hardware included. | 
