This Carlson’s magazine extension (mfr. part no. 04500) adds 8 rounds of capacity to a 12-gauge Remington 870, 1100, 11-87, Versa Max, or V3 shotgun.

Key Specifications

• Adds 8 rounds to your shotgun’s magazine capacity.
• Chambered for 12-gauge shells.
• Fits the Remington 870, 1100, 11-87, Versa Max, and V3.
• Constructed of blued solid steel.
• Includes a spring.
• Includes a base clamp with swivel stud (works with a QD sling swivel, sold separately).
• Includes a high-visibility follower.
• Threaded tube design replaces the factory magazine cap.
• Overall length of approximately 12.2 inches.
• Manufactured by Carlsons.

Frequently Asked Questions

Is this a full replacement magazine?

No, it’s an extension tube that adds 8 rounds of capacity to your existing Remington 870/1100/11-87/Versa Max/V3 magazine tube.

Does it come with everything needed to install it?

Yes, it includes a spring, base clamp, high-visibility follower, and instructions.

Buy the Carlson’s Remington 870 8rd Extension

Shop the Carlsons lineup or browse our full Shotgun Magazines selection to find the right fit for your firearm.