Uncle Mike's Magazine Cap with Swivel Base - Mossberg 500

Now you can add sling swivels to your favorite pump or auto without altering your shot gun Uncle Mike’s new 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” woodscrew swivel base is included along with two super swivels.