Description
The Wilson Combat right-hand extension tube is the real deal. It's made from solid steel with a parkerized black finish that resists corrosion and holds up through regular use. Add one round to your magazine capacity, bringing your Remington 870, 1100, or 1187 to 5 total rounds in the tube.
Built for practical reliability
This extension comes with an extra-power magazine spring to ensure smooth feeding every single time. A high-visibility follower lets you see at a glance when the tube is empty, which matters whether you're at the range or in the field. The construction is straightforward and robust, without unnecessary complexity.
Right-hand sling mount included
The integrated sling mount is positioned on the left side of the extension, ideal for right-handed shooters who want quick sling attachment without fuss. Installation is straightforward on most Remington pump shotguns, though newer models with dimples in the magazine tube may require minor modification.
Wilson Combat has built a reputation for this product. It's been selected for professional use by federal agencies because it works consistently and handles what gets thrown at it. You're getting steel construction with practical features designed by people who know shotguns inside and out.
Key Specifications
- Manufacturer: Wilson Combat
- Model: Remington 870 1-Shot Extension 12Ga
- Manufacturer Part Number: SGET-RH-1
- UPC: 874218003418
- Gauge: 12 Gauge
- Compatible Models: Remington 870, 1100, 1187
- Capacity Addition: 1 Round
- Total Tube Capacity: 5 Rounds
- Hand Orientation: Right Hand
- Material: Steel
- Finish: Parkerized Black
- Sling Mount: Right Hand Side Mount (Left Side of Tube)
What’s Included
- Extension tube with parkerized finish
- Extra-power magazine spring
- High-visibility shell follower
- Wave washer for installation
Frequently Asked Questions
Will this extension tube fit my specific Remington shotgun?
This extension is designed for Remington 870, 1100, and 1187 models. Older pump shotguns typically accept it without modification. Newer models may have dimples in the factory magazine tube that require drilling out before the extension will function properly. If you're unsure about your specific gun, check the model marking on your receiver.
What's the actual round capacity after installing this extension?
The extension adds one round, bringing your total magazine tube capacity to 5 rounds using standard 2 3/4-inch shells. When you also account for one round in the chamber, you're looking at 6 total rounds available on the gun.
How does the sling mount work on this right-hand extension?
The sling mount is positioned on the left side of the extension tube, which works perfectly for right-handed shooters who want to sling the gun on their support side. It provides a solid attachment point for quick sling systems or traditional carrying slings.
Is the included spring powerful enough for reliable feeding?
The extension comes with an extra-power magazine spring designed specifically to handle the extended capacity. It's built to feed reliably through standard shot patterns. The high-visibility follower helps you see whether rounds are feeding up smoothly during use.





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