Carlsons 04504 Shotgun Magazine Extension 12 Gauge Remington 870, 1100, 11-87, Versa Max, V3 Blued Steel 10-Shot

The Carlsons 04504 is a 12 gauge shotgun magazine extension that adds real firepower to your Remington pump or semi-auto. Constructed from blued solid steel, the threaded tube replaces the factory magazine cap and extends the magazine tube to hold 10 rounds of 2-3/4" shells, making it a natural fit for home defense, competition shooting, and law enforcement applications.

This extension is purpose-built for the Remington 870, 1100, 11-87, Versa Max, and V3. The package includes the extension tube, a replacement magazine spring, a high-visibility follower, and a base clamp with swivel stud (quick-detachable swivel sold separately) for sling attachment. The blued steel finish blends cleanly with the factory look of your Remington.

Installation is straightforward: remove the existing magazine cap and thread the extension in its place. Whether you are running a tactical pump or a dedicated home-defense shotgun, the 04504 delivers dependable additional capacity in a clean, factory-style package.