A Carlson's magazine extension for 12-gauge Remington 870, 1100, 11-87, Versa Max, and V3 shotguns puts more rounds at your fingertips when it counts. Built from blued solid steel, this tube threads onto your shotgun's existing magazine cap, adding genuine firepower without requiring permanent modifications. Whether you're running a home-defense shotgun, competing in tactical matches, or working in law enforcement, the ability to load more shells means fewer reloads and more confidence when the moment matters.

The extension ships complete with a spring base clamp and swivel stud, so you can attach a quick-detachable sling for hands-free carry or rapid repositioning. The included high-visibility follower makes it easy to see your round count at a glance—critical information in any serious shooting scenario. Installation is straightforward; detailed instructions walk you through the process of removing the factory cap and installing the threaded tube.

Carlson's designed this extension to work across five popular Remington semi-auto and pump shotgun platforms, making it a versatile upgrade for hunters who run an 870 or shooters who favor Remington's other proven designs. The blued steel finish resists corrosion and matches the factory appearance of most Remington shotguns, so it doesn't look like an afterthought bolted on the side.

A Carlson's magazine extension for 12-gauge Remington 870, 1100, 11-87, Versa Max, and V3 shotguns puts more rounds at your fingertips when it counts. Built from blued solid steel, this tube threads onto your shotgun's existing magazine cap, adding genuine firepower without requiring permanent modifications. Whether you're running a home-defense shotgun, competing in tactical matches, or working in law enforcement, the ability to load more shells means fewer reloads and more confidence when the moment matters.

The extension ships complete with a spring base clamp and swivel stud, so you can attach a quick-detachable sling for hands-free carry or rapid repositioning. The included high-visibility follower makes it easy to see your round count at a glance—critical information in any serious shooting scenario. Installation is straightforward; detailed instructions walk you through the process of removing the factory cap and installing the threaded tube.

Carlson's designed this extension to work across five popular Remington semi-auto and pump shotgun platforms, making it a versatile upgrade for hunters who run an 870 or shooters who favor Remington's other proven designs. The blued steel finish resists corrosion and matches the factory appearance of most Remington shotguns, so it doesn't look like an afterthought bolted on the side.