Summer Cleanout Sale!
Huge Savings On 2000+ Items From 200+ Brands - SHOP NOW

Daily Deal: ATN Thor-LTV 3-9x 256x192 12 Micron Thermal Scope ~~$1095.00~~ $679.99- Get Yours!

Magazine Extension 12 GA 8 Shot Remington 870/1100/11-87

Magazine Extension 12 GA 10 Shot Remington 870/1100/11-87

Magazine Extension 12 GA 7 Shot Remington 870/1100/11-87

CARLSON'S - MAGAZINE EXTENSION TUBES 12GA REMINGTON 870/1100/11-87/VERSA MAX

24 Reviews

Cartridge Capacity

Brownells #

100013346, 100013349, 100013350

MFR #

04500, 04504, 04506

UPC

723189045005, 723189045043, 723189045067

$75.49 - $78.99

Purchase Limit

In stock

NOTIFY ME WHEN IT'S BACK IN STOCK

Can we ship this to you? (US only)

How To Buy Guns Online

International purchase information

What is the CARLSON'S - MAGAZINE EXTENSION TUBES 12GA REMINGTON 870/1100/11-87/VERSA MAX?

Add firepower to your favorite shotgun. These magazine extensions are constructed of blued solid steel and come with spring, base clamp, and a high visibility follower. The threaded tube replaces you magazine cap and gives you the ability to add extra rounds to you magazine. Easy to follow instructions are included. The magazine extension tube is great for home protection, competition shooting, and law enforcement.

SPECS:

All extensions are 12 gauge only.

Overall Length of Extensions: 04500 (8.25"), 04501 (10.5"), 04502 (6.25"), 04504 (14.25"), and 04506 (6.25")

Magazine round count is for total capacity using 2 3/4" shells and 1 in the chamber

Remington extensions require removal of tabs in magazine on newer model shotguns

Available options

Image	Description
	Magazine Extension 12 GA 8 Shot Remington 870/1100/11-87 UPC: 723189045005
	Magazine Extension 12 GA 10 Shot Remington 870/1100/11-87 UPC: 723189045043
	Magazine Extension 12 GA 7 Shot Remington 870/1100/11-87 UPC: 723189045067

Please select a FFL Dealer

7 dealers near

No dealers found

Please search by another zipcode to find the nearest dealer.

Brownells Retail Store

You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.

* Must accept required fields.

Brownells Featured Dealers

Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.
Standard Dealers

Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.
Not Available Dealers

Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

7 dealers near

Alternative products

Add on

MAGAZINE EXTENSION TUBES 12GA REMINGTON 870/1100/11-87/VERSA MAX REVIEWS

4.5

24 Reviews

5 Stars

67%

4 Stars

17%

3 Stars

17%

2 Stars

1 Stars

Reviews Summary

Customers appreciate the MAGAZINE EXTENSION TUBES for their quality, ease of installation, and effective enhancement of their shotguns' capacities. Some users faced challenges with fitting and operational issues, particularly with follower sizes affecting capacity claims. Overall, many find it a worthy investment for improved performance and function.

What Reviewers Are Saying

Installation and Setup

65%

Most reviewers found the installation process straightforward, with many stating it took a minimal amount of time. However, some experienced complications related to modification and fitting, especially with the original magazine tube dimples requiring drilling or filing. Despite these hurdles, the general consensus is that it is an easy upgrade once the initial adjustments are completed.

Product Quality

80%

The quality of the extension tubes received widespread praise among users. Reviewers noted that the materials feel durable and well-constructed, contributing positively to their shooting experience. Some critiques focused on imperfections in the bluing finish, but overall, it is viewed as a high-quality product.

Capacity Claims

50%

Several users reported discrepancies between the advertised and actual magazine capacities. Many initially expected an increase in shells but found themselves limited to fewer rounds than indicated. This issue, particularly with follower compatibility, led to confusion and frustration for some users.

Functionality

70%

The extensions generally performed as advertised, enhancing the firing capacities effectively. Most users highlighted that their shotguns worked seamlessly post-installation, with specific mention of how well the modifications functioned during use in various shooting contexts.

Support and Instructions

40%

Customers appreciated the inclusion of clear installation instructions, although some indicated that troubleshooting information was lacking. Several felt that, while better than some alternatives, the documentation could still be improved for a more comprehensive support experience.

Sort by Filter by rating

Great up-Grade

I purchased the # 8 tube a few years back to accomadate 18.5 inch slug barrel i put on an older Remington Express along with a tube mounted flash light.. Turned out Great ! Was a gift for my son & would highly recommend. Barrel & tube are flush just so you know. 7 plus 1 !

Would you recommend this? Yes, I would recommend to a friend

Carlson 2 round extension.

I haven’t used it yet, but I put it on my 870 wing master looks fits great. Now if I can find a Remington 18.5 or 20 inch Polished blued barrel…

Would you recommend this? Yes, I would recommend to a friend

by RICKIE BUTLER on June 08, 2025

Verified Purchase

Was this review helpful? 1

Great Product, great value!

I was very impressed with the incredibly accurate and detailed installation instructions. Thank you to the person who included great instructions!

by David Varner on April 02, 2024

Verified Purchase

Was this review helpful? 1

11-87 extended magazine

Excellent product with instructions to match. 20 minutes to assemble that included drilling the indentations out of the stock magazine. Highly recommended.

by KEVIN MCCANN on December 21, 2023

Verified Purchase

Was this review helpful? 0

Custom Hand Filing Outstanding Gratitude

I knew before hand that my newer Remarms 870 has dimples on the magazine tube . I highly recommend hand filing which is a slower process but the fitment and pleasure that you did it better puts a gratifying smile on your face and spirit, it functions flawlessly . I used various types of hand files . Go slow , don't be in a rush. There are no holes in the tube from drilling. It looks really good too.

View All 24 Reviews