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Winchester Super X-3 Shotgun Magazine Extension Tube - Winchester Super X3 Magazine Extension Tube, 3 Rds
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$106.99
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SKU: 129000263
Overview
This magazine extension is designed to add capacity to compatible 12-gauge Benelli, Beretta, and Winchester shotguns while keeping installation straightforward. Its precision-machined aluminum construction and extra-thick wall are intended to provide a rigid, all-metal upgrade, and the knurled surfaces help with installation and removal for cleaning. It threads onto the factory magazine for a quick fit and includes the tube extension, tube connector, spring, and follower. For hunters and shooters who want a practical capacity increase for competition, law enforcement, or home defense use, it offers a focused, purpose-built option.
Why Hunters Choose the Briley
Increases Magazine
Capacity by three rounds for
Precision-machined Aluminum
Extra-thick walls for added rigidity
Screws Onto
Factory magazine threads for fast
Knurled Grasping
Installation and removal for cleaning
Includes Tube
Extension, connector, spring, and follower
Key Features
- Increases magazine capacity by 3 rounds.
- Fits 12-gauge Benelli, Beretta, and Winchester shotguns.
- Precision-machined aluminum extension tube with extra-thick wall construction.
- Screws onto factory magazine threads for installation in minutes.
- Knurled grasping surfaces help with installation and removal for cleaning.
- Includes tube extension, tube connector, spring, and follower.
Best Used For
- Hunters or shooters wanting added 12-gauge capacity with a simple magazine extension setup.
- Users who prefer fast installation on Benelli, Beretta, or Winchester shotguns with factory magazine threads.
- Those needing a rugged, all-metal extension for range use, competitions, or defensive setups.
- Owners who value easy removal for cleaning thanks to knurled grasping surfaces.
- 12-gauge shotgun users seeking a Briley-made extension with included spring and follower.
Specifications
| Blade Finish | black finish |
|---|---|
| Capacity | 3 Rds |
| Compatibility | Benelli, Beretta, or Winchester shotgun |
| Construction | all-metal |
| Features | increases round capacity; easy to install; extra-thick wall; knurled grasping surfaces |
| Gauge | 12 gauge only |
| Includes | tube extension, tube connector, spring, and follower |
| Installation | screws onto the factory magazine threads |
| Material | 6061 T6 aluminum |
Pros
- Increases magazine capacity by three rounds for compatible 12-gauge shotguns.
- Precision-machined aluminum construction with extra-thick walls for added rigidity.
- Screws onto factory magazine threads for fast installation in minutes.
- Knurled grasping surfaces help with installation and removal for cleaning.
- Includes tube extension, connector, spring, and follower for a complete setup.
Considerations & Trade-offs
- Fits 12-gauge shotguns only, so it is not a universal extension option across other gauges or platforms.
- Installation is straightforward, but it still depends on compatible factory magazine threads and a proper fit with the listed Benelli, Beretta, or Winchester models.
- The extension adds capacity, but it also changes the shotgun’s overall setup and may affect how the gun handles or balances compared with the factory configuration.
- Includes the extension tube, connector, spring, and follower, so it is a component upgrade rather than a complete magazine system.
Suggested Comparisons
- Standard shotgun magazine extensions
- Higher-capacity shotgun magazine tubes
- Shotgun accessory installation tools
- 12-gauge shotgun accessories
Suggested Accessories
- Shotgun cleaning kit
- Magazine spring
- Gun oil
- Shotgun case
Frequently Asked Questions
What shotguns does this magazine extension fit?
According to the product data, it fits 12-gauge Benelli, Beretta, or Winchester shotguns. It is listed as 12 gauge only.
How much capacity does it add?
The title identifies it as a 3-round magazine extension tube.
What is included with the extension tube?
The package includes the tube extension, tube connector, spring, and follower.
How is it installed?
It screws onto the factory magazine threads and is described as easy to install, with installation taking minutes.
What material and finish are listed?
The specs list 6061 T6 aluminum with a black finish. The description also notes an extra-thick wall and all-metal construction.