Carlson's presents their solution to upgrading the capacity to you favorite shotgun. Made from blued solid steel, Carlson's Shotgun Magazine Extensions include everything you need to install: spring, base clamp, and a high visibility follower. Simply by replacing your magazine tube cap and spring, you can add rounds to your shotgun's capacity with ease. The Carlson's Shotgun Magazine Extension is an ideal accessory for home protection, self defense and competition shooting.
Specifications and Features:
Carlson's Shotgun Magazine Extension 04506
12 gauge
7 Shot total capacity with 2-3/4" shells
Spring, follower and clamp included
6.25" overall length
Steel
Blued finish
Fits:
Remington 870/100/11-87/Versa Max
Note:
Tabs inside magazine tube must be removed for installation.
Specifications and Features:
Carlson's Shotgun Magazine Extension 04506
12 gauge
7 Shot total capacity with 2-3/4" shells
Spring, follower and clamp included
6.25" overall length
Steel
Blued finish
Fits:
Remington 870/100/11-87/Versa Max
Note:
Tabs inside magazine tube must be removed for installation.
2 Ratings
Perfect
It is a perfect fit.
April 1, 2023
Once I ordered the 2 shot extension it was received really fast,and was easly installed on the shotgun very good quality.
January 16, 2022
remove tabs? does this mean you cannot go back to standard tube length (say for hunting 3 shot limit)
Answer:
No the fitment note is referring to something else. Remington 870s produced in the late 80s and through the 90s have tabs or dimples in the magazine tube which need to be removed in order to add a magazine extension tube.
How many 3 shells fit?
Answer:
It adds two 2-3/4" shells to the standard 5 round mag tube. Based on this it would only give you one more 3" shell in the mag tube.
How many shells actually fit in the magazine extension, does it add 3? Or 7 total including one in the chamber
Answer:
It increases the standard 870 mag capacity to 7 rounds of 2-3/4" shells. So it's a +3 extension.
Does this fit flush with an 18.5" barrel?
Answer:
It will be slightly longer than the muzzle.
Is this compatible with a 18.5" barrel?
Answer:
Yes. It may extend beyond the muzzle.