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Questions & Answers
Does this fit any other firearm magazine? Expert Answer

Not as specified by the manufacturer.

by Bill, Gear Expert, September 17, 2021
Does it only work with the regular standard capacity magazines or is it also compatible with the regular ten round as well? Expert Answer

According to Pro Mag, it fit and add to the capacity on the standard magazine and 10 round magazines that do not have the 10 round limiter dimple on the side of the magazine. The extension will fit on the 10 round limiter magazines, but will not increase the capacity.

by Bill, Gear Expert, September 28, 2021
Customer Reviews
Helpful Positive Review
XD magazine base plate/extension by Jerid76, Verified Owner, December 19, 2020
I was skeptical at first due to the mixed reviews but by far impressed. Some will say it only adds one round but i found that if you change the follower to a spring internal in stead of the factory follower that has a piece of plastic down through t...
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1/1 found this helpful
Helpful Positive Review
Great item with one flaw by jared, August 26, 2019
This was a great pickup at yhe price! Most places are selling for 3x the this price. My only issue is it only added one more to the magazine. I wish it added +4 to my XD-9 but it still gives the the length I needed.
1/1 found this helpful
Most Recent Reviews
NOT plus 4 But it works… by Tony, Verified Owner, June 2, 2022
For restricted states(CA) you can add it to oem 10 rd mag and it will NOT increase capacity it’s just for looks but it does look badass, I tried this on a 16 rd oem mag and no matter how hard is pushed and even used a loader I was only able to get pl...
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Most Recent Reviews
Money well spent. by Darryl Scott, Verified Owner, November 25, 2020
I love the easy install the extra ammo capacity and the look is straight off of John Wick. My xd9 looks like a lead spitting machine. I ordered to and he'll I should just buy the rest of the inventory because when I say stellar quality I mean its all...
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Most Recent Reviews
For $10, adding an extra 4 rounds to my primary magazine for my XD-9 was a no-brainer, as was the very simple swap from the original base plate. Absolutely no issues; 1 minute of install, and an extra 4 rounds in the hoppa! AWESOME! I can't comment...
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Read All 5 Reviews
Magazine Capacity:
3 Round
Condition:
New

Code: KA0-PME-SPRXD9ME-PM211-3RD

MPN: PM211

UPC: 708279009761

List: $13.99Save 14%
$11.99

Product Info for Pro Mag Springfield XD-9 Plus 4 / XD-40 Plus 3 Magazine Extension

Springfield XD-9 (+4) and XD-40 (+3) Magazine Extensionimage

Specifications for Pro Mag Springfield XD-9 Plus 4 / XD-40 Plus 3 Magazine Extension:

Manufacturer: ProMag
Magazine Capacity: 3 Round
Condition: New

Package Contents:

  • Pro Mag Springfield XD-9 Plus 4 / XD-40 Plus 3 Magazine Extension

Pro Mag Springfield XD-9 Plus 4 / XD-40 Plus 3 Magazine Extension Orderable Models

List of Orderable Models

  • Pro Mag Springfield XD-9 Plus 4 / XD-40 Plus 3 Magazine Extension PM211 , MPN: PM211 , UPC: 708279009761 , Code: KA0-PME-SPRXD9ME-PM211-3RD
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