Loading... Please wait...

AGP Arms Springfield XD9/40 and XD MOD.2 +4 Magazine Extension

AGP Arms Springfield XD9/40 and XD MOD.2 +4 Magazine Extension

5 Stars
Calculated at checkout

Product Description

This kit includes a new 20% extra power spring and are the only extensions for the XD9 and XD40 (also fits new XD Mod.2) that have locking plates to keep them from popping off your mags. This is a +4 extension for the 9 and +3 for the 40 that does not prevent the slide from locking open after the last round has been fired. These will not fit on single stack magazines sold in California models.

Included Parts:

Glass Filled Nylon Magazine Extension
Hardened Steel Locking Plate
+20% Extra Power Spring
Installation Instructions

Dealer Inquiries Welcome for 100+ Qty.

Find Similar Products by Category

Product Reviews

Write your own product review

Showing reviews 1-5 of 8 | Next

  1. nice up grade 5 Star Review

    (Submitted on 22nd Feb 2017)

    Didn't come with instructions but easy enough to figure out how to install. Really solid product. I did need to us a loader to get all 20rd in. I would recommend this to my friends.

  2. Solid Product 5 Star Review

    (Submitted on 4th Oct 2013)

    I bought three extensions and added them on to one XD9 and two XD40SC magazines. In the .40 however, it will only accept three extra rounds. Nevertheless, I now have a backup 15 round magazine that I can carry in my pocket for my EDC.

    I have heard people talk about not using extensions because the plate will pop off the bottom, but AGP is correct when they say this will not happen with their extension. It is on solid (that also means that if you want to take it off, it's a hassle, as I found out, but not impossible. I consider this a positive, however, because it means I can trust the extension to stay on).

    One negative about this extension: if you want to use it with the XDSC 12 round mag and the extension (the part that just fits around the mag), you have to trim off the top part of the plastic on the lip of the AGP extension in order to get it to fit. That's not difficult however, as it just takes dragging knife or sandpaper across it a few times.

    All in all, a very easy, quick, and cheap way to get a three/four extra rounds loaded up.

  3. So far so good. 4 Star Review

    (Submitted on 12th Jun 2013)

    I've only run 100rds through my mag with the extension, but not a single problem so far. I'll be using this mag at a 3-gun match later this month and if it continues to perform well I'll DEFINITELY be ordering a couple more. Thanks for a GOOD product. (after I abuse it a little I'll find out if it's a GREAT product)

  4. XD9 20 rounds of 9mm 5 Star Review

    (Submitted on 20th Apr 2013)

    I bought 5 of these and had zero trouble installing them. The included instructions are more than antiquate. I was also able to load the +4 rounds by hand without the need for a loader. As an added benefit, for folks like myself who have large hands, the extension increased the area for the palm of my off hand. I have nothing bad to say about these extensions. I've put 100 rounds through them already with zero loading issues.

  5. Xd mag extension 4 Star Review

    (Submitted on 8th Apr 2013)

    Easy to install. Fast delivery.

Showing reviews 1-5 of 8 | Next

Sign up to our newsletter

Recent Updates

Click the button below to add the AGP Arms Springfield XD9/40 and XD MOD.2 +4 Magazine Extension to your wish list.