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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. 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.

  2. 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.

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