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

The Uncle Mike's Magazine Cap with Swivel Base for Mossberg 500 provides a clean, factory-compatible method to install sling attachment points without permanently modifying your shotgun. This pre-assembled magazine cap swivel set eliminates the need for gunsmithing or drilling—simply unscrew your existing factory magazine cap and install the new cap in its place. The design preserves the original firearm configuration while enabling tactical sling mounting for patrol-ready operations, training scenarios, or field deployment.

Installation is straightforward and non-invasive. The kit includes a factory magazine cap with the swivel base already assembled, eliminating loose components or assembly errors in the field. For buttstock attachment, a 3/4-inch woodscrew swivel base is supplied along with two additional super swivels, providing flexibility for single or dual-point sling configurations. The swivel design handles the rotational forces common during shooting transitions, vehicle operations, and dynamic entries without binding or restriction. This modular approach allows operators to add or remove attachment points as mission profiles change without tools beyond a standard screwdriver.

This upgrade suits pump-action and semi-automatic shotgun operators across law enforcement, military, and civilian training environments. Whether running a two-point sling for room clearing, transitioning to a single-point for vehicle work, or maintaining a traditional carry setup, the Mossberg 500 magazine cap swivel system adapts to operational needs. The reversible nature of the installation—no permanent modifications—makes it ideal for duty weapons, training platforms, or firearms that see multiple deployment profiles. Michaels of Oregon has positioned Uncle Mike's products as functional tactical accessories that prioritize reliability without compromising the original firearm design.