The Wilson Combat Magazine Extension Tube for Remington 870, 1100 & 11-87 (part no. SGETRH1) is a shotgun magazine extension tube, not a standalone magazine — it fits 12-gauge Remington 870, 1100, and 11-87 shotguns and adds 1 round of capacity to the factory tube. Wilson Combat builds it from steel with a parkerized black finish and an extra-power spring for reliable cycling. It’s designed for shooters who want more rounds on tap for home defense or duty use without swapping the whole magazine tube. Whether you’re running a duty gun or a home-defense shotgun, this extension is built to add capacity you can count on.

Key Specifications

• Fits 12-gauge Remington 870, 1100, and 11-87 shotguns.
• Adds 1 round of capacity to the factory magazine tube.
• Made of steel with a parkerized black finish.
• Includes an extra-power magazine spring for reliable cycling.
• Uses a high-visibility follower for an at-a-glance empty check.
• Built with a right-hand sling mount.
• This is an extension tube, not a standalone magazine.
• Manufactured by Wilson Combat.
• Cataloged under our shotgun magazines selection at Schaefer Defense.

Frequently Asked Questions

Does this replace my factory magazine tube? No — it threads onto the factory tube and adds capacity, it doesn’t replace the tube itself.

Which shotguns does it fit? 12-gauge Remington 870, 1100, and 11-87 shotguns.

Buy the Wilson Combat Magazine Extension Tube for Remington 870, 1100 & 11-87

Order the Wilson Combat Magazine Extension Tube for Remington 870, 1100 & 11-87 from our Lubbock, Texas gun shop for fast shipping. Browse more shotgun magazines at Schaefer Defense.