Use the Ergo Grip Tactical Stock Adaptor to install AR-15 type stocks and pistol grips on your Mossberg 500/590 shotguns. – Use any style AR type collapsible buttstock and pistol grip combination – This stock adapter has the proper drop designed in so factory sights can be used. (Bead Rifle and Ghost Ring Sights) – Made from glass filled polymer – Includes mounting hardware
