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Getting serious rounds into your Winchester SX2 or SX3 means upgrading the magazine tube. This Carlsons extension solves that problem by giving you a real capacity bump without breaking the bank. The tube threads directly onto your magazine cap, replacing it to add extra shells to your reserve.
The tube is manufactured from solid blued steel, designed to last through regular use and handle the wear that comes with actual shotgun work. The blued finish matches standard Winchester shotgun aesthetics, so it looks like it belongs on your gun rather than appearing like an add-on. At 8.25 inches in overall length, it adds notable capacity without making your shotgun overly muzzle-heavy or awkward to handle.
You get everything needed for installation. The spring that drives the feed system is included, along with a base clamp featuring a swivel stud for quick-detachable sling attachments. The high-visibility follower makes it easy to see your round count at a glance, which matters when you're running drills or actual scenarios. Instructions are straightforward and the whole job takes minimal time with basic tools.
With 2.75-inch shells, this extension feeds 7 additional rounds into the tube plus the one in the chamber for 8 total. If you're running longer shells, capacity drops accordingly. The threaded design locks things in place permanently unlike some removable extensions, so once it's installed right, it stays put.
Carlsons has built a solid reputation for magazine extensions across different shotgun platforms, and customer feedback shows folks appreciate the build quality and reliability compared to pricier alternatives. Whether you're working on competition rounds, hunting, or home defense prep, this gives you more shots between reloads.
Yes. This Carlsons extension is compatible with Browning Gold and Browning Silver shotguns in addition to Winchester SX models. It threads on the same way and uses the same installation method regardless of which compatible shotgun you're running.
With 2.75-inch shells you get 7 rounds in the tube plus 1 in the chamber for 8 total. Using 3-inch shells drops that to 6 in the tube plus 1 in the chamber. Running 3.5-inch shells gives you 5 in the tube plus 1 in the chamber. The extension tube has a fixed physical size, so longer shells take up more space.
The threaded tube screws onto your factory magazine cap after you remove it. You'll use the included spring and follower, then install the base clamp. The setup is straightforward and instructions walk you through each step. Most people can finish installation in under 15 minutes with basic hand tools.
Once installed, it stays put. The threaded design locks it in place permanently, unlike some removable magazine extensions. This makes it more secure for serious use since there's nothing that can accidentally come loose or get lost during transport or shooting.
| UPC | 723189045050 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 04505 |
| Brand Fit | Browning |
| Caliber/Gauge | 12 Gauge |
| Capacity | 8 |
| Length | 12.1500 |
| Model | |
| Model Fit | SX3 |
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