Now you can add sling swivels to your Mossberg 500 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.
Specifications and Features:
Mossberg 500 12ga. Pump Action Shotgun
Includes replacement magazine cap with swivel base
0.75" wood screw buttstock swivel base
Two 1" Super Swivels