Blackhawk Mossberg 590/835 Shotgun Swivel Set

Now you can add sling swivels to your Mossberg 590 or 835 without altering your shotgun. Uncle Mike's Magazine Cap Swivel Sets have a factory magazine cap with the swivel base already installed. Just unscrew the factory magazine cap and replace it with the new cap. For the buttstock, a 3/4" wood screw swivel base is included, along with two Super Swivels.