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

$20.00

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.

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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.

Reviews (9)

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Required significant fitting to work

Overall these are pretty good. The only extensions I've found for the XD that actually lock into place. Two of mine worked great, but two had to have the edges filed down significantly just to allow the magazine to seat in the magwell and then also be able to easily be released with the button. Once I finally filed them down sufficiently the work well. The other drawback is that they are extremely difficult to remove once installed. Not impossible, but I have yet to find a single way to do it successfully every time. Also, the springs compacted after the first loading and significantly lost their power. The slide still locks back after the last round, but I'm nervous that any further compaction of the spring will eventually lose the lockback.
Posted by Christopher Beer on 23rd Sep 2019

nice up grade

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.
Posted by undefined on 22nd Feb 2017

Solid Product

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.
Posted by Jems on 4th Oct 2013

Additional info

SKU: AGP-XD-940EXT
Width: 3.00
Height: 1.00
Depth: 1.00
Shipping: Calculated at Checkout