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extra power spring
Stock spring shown next to our extra power spring

MPX Extra Power Replacement Spring


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Product Description

Silicon Carbide extra power spring for MPX with +10 basepad.


The extra power spring is designed to enhance feeding and to ensure the bolt locks back when empty.

Product Reviews

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  1. Love Taran tactical products

    Posted by Nate H. on Feb 15th 2019

    The spring and the coyote Bass plate I bought work flawlessly for my Sig MPX 9 mm definitely buying more

  2. been using these springs for about four years

    Posted by gene the old machinen on Apr 3rd 2018

    great mag springs , last for years undrer normal use


    Posted by Anil "Isaiah" Lalani on Mar 23rd 2018

    Great product !!! im runing these on my TF mag EXT ... lock the bolt back every time

  4. Just what I needed

    Posted by Chris on Sep 28th 2017

    I use these with Taylor Freelance +10 magazine extensions. I have them on two mags and both feed flawlessly. Both mags lock the bolt back when empty and after the last round. I have about 250 rounds and one range trip on them so far. I am very pleased with these springs as the factory springs are shorter and mine wouldn't hold the bolt open.

  5. First match report

    Posted by Herb on Jun 12th 2017

    Springs approximately 1.5" longer than OEM. I guess this is because of the 10 round mag extensions shooters commonly add. Wire gage same diameter (.054") as OEM. Used in practice and PCC match this past weekend - about 200 rounds. Performed perfectly. Original OEM springs had failed to hold bolt open after a year.

  6. You need this!!!

    Posted by jduenas32@yahoo.com on Jun 8th 2017

    I bought three basepads (TTI) and they didn't come with the Power Spring (I purchased thru another vendor). The bolt wouldn't lock back. So a buddy told me I needed these, man. I'm glad I got them. Bolt locks back, good pressure when you load the magazines, and also no feeding issues. Thanks.