The Mossberg 590® Shockwave Shotgun is a pistol grip firearm with all the features of Mossberg's classic pump-action shotguns. This Mossberg short-barrel firearm features twin action bars that prevent the forend from twisting to ensure a smooth action. Gun Digest Magazine. Magazine Customer Service. The Mossberg Flex cranks the classic Model 500 shotgun platform up a notch with the versatile TLS (tool-less locking system).
ATI Top Folding Stock with Pistol Grip for Mossberg 500, Remington 870 and More Shotguns $79.95 ATI Strikeforce Side Folding Shotgun Stock for Mossberg, Remington, Winchester & More - 12-Gauge $89.95 L&M Triple Rail Adapter & Shotgun Magazine Tube Mount $55.00