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PistolGear 170mm Mag Extension for XDm

PistolGear 170mm Mag Extension for XDm
Price: $42.99

This kit uses your XD(m)'s stock follower...

Are you looking to add some extra rounds to your magazine, whether for competition or practice? If so, this may be the product for you. Made of aluminum and with a removal backplate, this rugged design allows you to install your new spring for use with your stock follower in a minute or less. Unlike other magazine extension on the market, you will not need to fight with this one and it will NEVER come off of your mag tube during a reload.

When this extension is added to your XDm magazine tube, it will bring your OAL to 170mm, making it legal for USPSA Open Division.

When used with compact (short) frame models, the magazine will require the x-tension sleeve.


  • 9x19 = 26+1 (+7 rounds)
  • 40S&W = 23+1 (+7 rounds)

Magazine NOT included...

Kit includes magazine extension, rear plate, four screws, magazine spring and 5/64" Hex Key.

This part will NOT fit XDm45 ACP Magazines.

When using your stock follower, you may need to modify the bottom of the follower so it does not make contact with the extension. Please see the below image for some illustrative instruction.

WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov

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2 Product Reviews - Average rating 3.5 / 5 (Show All)

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Could be happier

- 07th July 2017

Extension was extremely tough to get onto mag, seems the slot that the mag slides into may have been machined a little too tight. But got it on and seems to be secure.

Pretty disappointed it wont fit my XDM with my funnel on, maybe it does with the PG funnel, but not mine. Guess I get to file down my brand new part

high cap. mag extension

- 30th October 2013

The extension arrived in 3 days time. All parts appear to be high quality. Install was easy on my 19 rnd 9mm mag for my XDm 3.8. I then loaded the mag to capacity at 27 rounds with the stock follower! I then manually cycled all the rounds through the mag/gun. This where the problem arose.
When I got to the end, the slide did not lock back. There wasnt enough spring tension (barely any at all in the unloaded mag) to activate the slide stop. I disassembled the mag and stretched the spring by hand, then reassembled. The slide locks back but, not sure it will stay that way after loading and unloading the mag a few times. Its almost like the spring needs just one more coil. Little disappointed but still awesome to have 27+1 capacity. Only time will tell if the spring will retain its tension on the follower.

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PistolGear "UnLimited" Magwell for XDm 9/40

List Price: $70.00
Price: $65.00