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Choate Tool Remington 870/1100/1187/Versamax 7 Shot Extension 12 Gauge+2 Rounds
$67.99 $62.79 Save $5.20
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Most Helpful Positive Review Remington 12 guage Magazine extender is just what was needed!
Item arrived in good timing and was exactly what was needed... The Remington 870 20 guage shotgun I own was made in 1955 and required a 12 guage magazine extender - which I ordered from Optics Planet.com The assembly was clean and did not require more than 15 minutes to remove the old parts and install the new extension. The new extension kit was complete and all parts needed fit perfectly. Loading ammo was smooth and the extension allowed two more shells to be loaded in my magazine! Thanks for a great product!
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Works fine

by Papa, Verified Owner from CO, United States Written on August 31, 2025
Seems like good quality. Works fine. Take care to ensure that spring doesn’t get hung up on the interface of the extension and the original magazine tube. If it does, slightly loosen the extension until the spring pops loose and fully extends. Then tighten the extension until. I also added black tape to the mounting side of the clamp to avoid scratching the barrel or extension.
Would recommend: Yes
Was it helpful to you? Yes | No

Perfect Fit

by Adamthetactical, Verified Owner from NC, United States Written on July 13, 2025
Added to a ‘78 870 Slug gun. No dimples made it super easy to install. I like the orange follower, I can see it easier. My worry was it would stick out beyond the barrel and that was not the look I wanted. Luckily it still has about an inch to go. Would recommend for your retro pump to modern tactical build.
Pros:
  • Looks cool
  • Easy to install,
Cons:
  • Spring is very springy
Best Used for:
  • Adding 2 rounds to your 870
Would recommend: Yes
Was it helpful to you? Yes | No

Choate Remington 870 mag extension

by John, Verified Owner from VA, United States Written on February 21, 2025
Highly recommend this product. Excellent quality, 5 minute install. I have an older 870 so no retainer dimples or spring.
Would recommend: Yes
Was it helpful to you? Yes | No

12 ga mag extension

by Michael Selby, from WI, United States Written on December 31, 2024
I bought this for my son for Christmas, and we are both extremely satisfied with the extender! Outstanding quality and fit, great price, and very easy to install. I highly recommend Optics Planet and their products!
Pros:
  • Fit, Finish, Price
Cons:
  • None
Best Used for:
  • Anything !!!
  • anything!!!
Would recommend: Yes
Was it helpful to you? Yes | No

Just what I needed

by Monreal Williams, Verified Owner from NC, United States Written on January 16, 2024
I have a remington clone. When I first bought it, it came only 3 round capacity.i took the follower out and extended it to 5+1. Now it holds 7 high brass. 8 low brass. Looks menacing. Magazine tube sticks out a little further than the barrel. Love it
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Choate SKU 01-04-02 = +2 4 11-48 2

by Rogneb, Verified Owner from OH, United States Written on June 22, 2023
TRANSLATION: "Choate +2 rounds mag extension for Remington 870/1100/11-87/Versamax fits 11-48 series 12 gauge shotguns too." At the risk of repeating what may have already been submitted here, I offer the following. Through research and experience I learned this device fits the 11-48 series of shotguns perfectly (including Sportsman and Mohawk). It does, however, leave a 1/4" gap between the extension and forearm WHICH CAN BE FILLED BEAUTIFULLY with the eye-piece locking ring from a cheap sacrificial 1" scope. In fact the finished product looks like it came from the factory. I fit one to my 11-48 using a slightly reamed out eye-piece locking ring from an old Tasco scope and, again, it looks like it came from the factory. I have yet to fire the weapon but have repeatedly loaded and cycled the now 6-shot mag tube with no hiccups. Be advised, using a spacer precludes the use of the detent/ball indexing/locking mechanism on these type shotguns, but a little gunsmithing (or blue locktite) could resolve that issue. FWIW, I have no experience with longer Choate extensions or those from other manufacturers.
Pros:
  • Extra rounds with no loading/cycling problems.
Cons:
  • Loss of detent/ball locking mechanism utility.
Best Used for:
  • Home/self defense build.
Would recommend: Yes
Was it helpful to you? Yes | No
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