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If you own a Remington 870 or 1100, adding capacity is one of the first upgrades you'll want to make. This Carlsons extension tube swaps right in for your factory magazine cap and gives you two extra rounds in the tube, bringing your total to 7+1 with standard 2.75-inch shells. The whole package comes complete with a heavy-duty spring, base clamp, and a bright orange follower so you can see what you're loading.
The extension is manufactured from blued solid steel that matches the classic 870/1100 finish. It's a straightforward, proven design that's been used by hunters, sport shooters, and home defense folks for years. The blued steel holds up well in real-world use, though keep in mind the finish may have a slightly different appearance than factory barrels, which is typical across different manufacturers.
Threading onto your shotgun is simple enough. This extension works on Remington 870, 1100, 11-87, Versa Max, and V3 models. The 6.25-inch length keeps things relatively compact compared to bigger extensions, so it won't extend far past a standard 18.5-inch barrel. One important note for newer shotguns: you may need to remove the factory detent tabs inside your magazine tube before installation. It's a quick fix with a small file or Dremel if needed.
You get the extension tube, a new magazine spring, a base clamp for securing the setup, and that high-visibility orange follower. Everything necessary for installation comes in the package, so there's no need to hunt for parts.
Yes, this extension is designed specifically for Remington 870, 1100, 11-87, Versa Max, and V3 shotguns. It threads right onto your factory magazine cap. Just note that newer 870 models may have internal detent tabs that need removal before installation.
With 2.75-inch shells, you'll have 6 rounds in the extension plus 1 in the chamber for a total of 7+1. Using 3-inch shells reduces this to 6+1, and 3.5-inch shells gives you 5+1. The extension doesn't change chamber capacity, only magazine tube capacity.
Installation is straightforward. The tube threads onto your magazine cap and the clamp provides a solid mounting point. On some newer shotguns you may need to file down or remove internal detent tabs to allow shells to load freely. Clear instructions come in the box.
At 6.25 inches long, this is one of the shorter extensions available. On an 18.5-inch barrel it typically won't extend significantly past the muzzle, though this depends on your specific shotgun configuration. Measure your setup if muzzle length is a concern.
| UPC | 723189045067 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 04506 |
| Brand Fit | Remington |
| Caliber/Gauge | 12 Gauge |
| Capacity | 7 |
| Length | 12.5000 |
| Model | |
| Model Fit | 870 |
| Product Type | Magazine Extension |
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