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 04504
12 gauge
10 Shot total capacity with 2-3/4" shells
Spring, follower and clamp included
14.25" overall length
Steel
Blued finish
Fits:
Remington 870/1100/11-87/Versa Max
Note:
Tabs inside magazine tube must be removed for installation.
Specifications and Features:
Carlson's Shotgun Magazine Extension 04504
12 gauge
10 Shot total capacity with 2-3/4" shells
Spring, follower and clamp included
14.25" overall length
Steel
Blued finish
Fits:
Remington 870/1100/11-87/Versa Max
Note:
Tabs inside magazine tube must be removed for installation.
4 Ratings
Massive improvement!
What an easy installation and this solved a problem I have had since purchasing this weapon; I could only load three (3) rounds otherwise it jammed. I now have ten (10) rounds that are available. This is a very worthwhile improvement.
March 25, 2022
The conversion of my Remington Model 1100 was easy and quick! The kit contained everything that was needed and installed flawlessly! I am very pleased with the purchase!
August 19, 2021
I got what I wanted.
This was for my Remington 1187. I got it for Three Gun Shoots. It holds 10 in the tube plus one. So far I have had no feeding problems or loading problems. Easy and fast to install. No modifications needed. Very well built. Looks and feels like it will hold up to anything. Pros: Good price for a very good product. Cons: None
February 25, 2019
Fit nice on my 870 can lo
Fit nice on my 870 can load and shoot all day nice. I Love this!
March 5, 2014
Will this fit the 870 super mag? The barrel measured 27 inches.
Answer:
Yes this will fit.
Will this work on a late seventies model 870?
Answer:
Yes this should fit.
will this fit an ATA CY 12 gauge?
Answer:
The manufacturer does not guarantee fit or function with any firearm other than the firearm the item was originally designed for.
What is the OD of the tube? I lost the clamp
Answer:
It's 1". You could use the GG&G Lancer Shotgun Mag Tube Extension Clamp Item# 20-LALSXCP2R or you may want to try a 1" light mount like iProtec item# 137355
Will this stick out passed a 26 barrel on a 870 express?
Answer:
If you currently have a 4 round magazine tube, the barrel guide ring is 11.75" from the breech face and this item is 14.75" long, so this item will make your magazine tube roughly 26" in length. If this item makes your magazine tube stick out past your barrel, than it will not be by much, and that will not affect the operation of the firearm.
Will this fit a Mossberg 835 ?
Answer:
No it will not.
I know this will work great with my 28in barrel but what would you recommend for a 18.5in barrel?
Answer:
It could work for both just fine.
I have a Rem 870 Express w a 25 1/2" barrel . What size tube extender should I use? 9+1? 8+1?
Answer:
Whichever one you want. It's not going to impact the shot or shot pattern.
How many shell will this hold?? I have a Remington 870 12 gauge with a 28-inch barrel.
Answer:
It will make your shotgun hold 10 total shells of 2 3/4"
Remington 1100, with Remington Rifled barrel that is 20.5" long. Looking for a mag extender that does not stick out past the barrel. Will this one work?
Answer:
It would stick out very slightly, I would recommend the 8 shot tube if flush fit is your concern, SHT-254-016
Would explain where the aforementioned nubs are found. With great detail thank you!
Answer:
Sure. The standard Remington 870 magazine tube has tab detents stamped from the outside-in near the top of the mag tube at the muzzle end. These are used to hold the spring retainer in place when you remove the magazine end cap. Those tabs, or nubs as you call them, will need to be flattened or removed from your Remington 870 mag tube to use this product. If left in place you will not be able to push rounds past the tabs, which would defeat the purpose of adding a mag extension.
I have a 870 wingmaster mag with a vent rib barrel, will this work on my gun?
Answer:
Yes it should fit, if there are tabs or divots in the magazine tube they must be removed prior to installation.
Description list Remington 100. Will this fit a model 1100?
Answer:
Yes it will.
Will this work on the Remington 870, 20 gauge?
Answer:
No it will not.
Will this extender work on a 20 GA Remington 870? All info states 12 GA.
Answer:
No, it will not fit.
Will this work on the 870 Express without modifications? I read that there may be "nubs" or something that prevent it from working without modifying the magazine.
Answer:
Almost all Remington 870s made after a certain time period have those nubs that need to be removed.
will this stick out past an 18" barrel ?
Answer:
Yes it will
Will this fit the Remington Sportsman 48?
Answer:
Not that we are aware of.
Would this work with an 18" barrel without sticking out passed it?
Answer:
No. This would protrude quite far. You would want a 2-shot extension. So you want a 7-shot
Would this tube fit a h&r pardner 1871 pump (New England) 28" barrel 12 ga?
Answer:
Probably not.
do you ship to canada? whats the total length?
Answer:
We are unable to ship outside of the US. The tube is 14" long.
what is the size of barrel after installed?
Answer:
The size of the barrel remains unchanged.