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This Wilson Combat extension tube gives you two additional rounds without any gunsmithing or permanent modifications to your shotgun. The tube screws directly onto your existing magazine with a knurled, threaded collar, making installation straightforward. Once installed, you'll go from a standard 4-round magazine to a full 6-round capacity.
Machined from solid steel and finished with a parkerized coating, this extension delivers the durability that made Scattergun Technologies (the tube's original manufacturer) a trusted choice for the U.S. Secret Service and Border Patrol. The single-piece design keeps things simple and reliable, with no complicated assembly required after installation. The tube measures just under 6.25 inches in total length, so it'll line up nicely with most barrel configurations without looking out of place.
The quick-detach sling stud mounts at the front of the tube in a vertical position, giving you a solid attachment point for tactical slings with standard swivels. It's held in place with a polymer-insert locknut, and you can position it for tight mounting or leave it loose enough to rotate if you prefer. Unlike some QD systems, this is a traditional swivel stud rather than a push-button mount, which means it's designed for slings that stay attached while you're shooting or moving between positions.
The package includes an extra-power magazine spring sized specifically for the extended length tube. You'll also get a high-visibility neon green follower that makes it easy to see at a glance when your magazine is running low or empty. One thing to note: the follower is designed for older 870 magazine tubes. If you have a newer model with factory dimples in the magazine tube, you'll need to file down or remove those detents first to ensure smooth operation. Most users report this takes just a few minutes with basic tools, and the included wave washer helps with installation and proper spring engagement.
Yes, it will fit newer Express models, but you'll need to address the factory dimples in the magazine tube first. Modern 870 Express shotguns have factory detents designed to prevent spring compression. You can smooth these out with a magazine tube detent swage tool or by carefully filing them down. Once the dimples are removed flush with the tube bore, the extension installs without any issues.
This model features a vertical sling stud mounted on the front of the tube, positioned at the bottom of the extension plate. It accepts standard swivels and works well for tactical slings. Wilson Combat also offers left-side and right-side loop options for permanent sling attachment, or a bare tube with no sling hardware. The vertical QD stud is popular because it's positioned underneath, keeping the sling out of the way during loading and handling.
Installation itself is straightforward with basic tools. You'll need to remove your shotgun's forend and magazine cap to access the magazine tube, then thread the extension on using the knurled collar. However, if you have a newer 870 with factory dimples, you'll want a magazine tube swage tool to smooth those out first. Once everything is prepped, installation takes just a few minutes.
The complete extension assembly including the sling stud, spring, follower, and wave washer adds approximately 7 ounces to your unloaded gun. If you opt for a version without the sling stud hardware, you'll save roughly 1.5 ounces. It's a minor addition that won't affect handling or balance in any meaningful way.
| UPC | 874218003401 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SGET-QDS-V-2 |
| Caliber/Gauge | 12 Gauge |
| Capacity | 2 |
| Color | Black |
| Model | |
| Product Type | Magazine Extension |
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