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

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

SKU:
AGP-XD-940EXT
$22.50
(25 reviews)
Current Stock:
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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.

Extension adds 23.5mm to the bottom of the factory magazine.  

NOTE: These will not fit California models.

NOTE: These will not fit XDM 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

  • 5
    XD40 magazine extension

    Posted by JP on 30th Jun 2022

    Ended up only being a three round extension instead of the advertised 4 additional rounds. Definitely doesn’t look like it was designed to match the XD40 grip but instead is a weird smooth extension that is smaller in diameter than the grip. Fortunately, no issues feeding even with a full mag dump.

  • 5
    This is on all my mags

    Posted by Sean on 5th Feb 2021

    I had a few of these extensions and I like them so much that I got more for the rest of my XD mags. They look like the gun was designed to have them on it. Getting 20 rounds in tends to require the help of a good speed loader but it can be done and feeds the first round normally. When assembling or disassembling it, beware that the extra power spring can cause extra power flying parts!

  • 2
    Only +2

    Posted by Ari on 31st Dec 2020

    I only got +2 from my 16 round mag, and with the extension the mag release is far more difficult to depress on either side. Not happy that it's not +4, but I can beef up my thumb squeeze and I'll take the +2

  • 5
    XD mag extender

    Posted by Greg on 2nd Sep 2020

    Easy installation. Full mag rattles a little bit not a deal breaker. Haven't had a chance to shoot yet—I've manually racked through a couple of full mags without a problem.

  • 5
    XD springs and mag ext.

    Posted by Robert L Smith on 30th Aug 2020

    fits great, easy to install, 4 extra rounds !

  • 5
    Mag spring

    Posted by Payton Brewer on 28th Aug 2020

    Spring has a lot of shake when make is full

  • 5
    XD9 mag extended base pad

    Posted by Jerry Solomon on 23rd Mar 2020

    I don't know they said just +4 but it's +6 on my mag lol with the spring that comes with, just to be clear, and quick shipping too highly recommended

  • 4
    Required significant fitting to work

    Posted by Christopher Beer on 23rd Sep 2019

    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.

  • 5
    nice up grade

    Posted by Unknown 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.