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TTI Extra Power Extended Length Spring for M&P


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Product Description

Replacement spring for high-capacity magazines with TTI Firepower Base Pads for M&P.

Designed exclusively to work with the TTI base pads. Each coil compresses and stacks into the neighboring coil to provide the highest capacity available in your magazines.

-140 mm spring

Product Reviews

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  1. Unequaled

    Posted by JB Creech on Mar 7th 2018

    My springs needed replacing, ordered Brownell's springs, then could only load 19rds. Replaced with the correct springs from TTI, 22-23 rds. Don't settle for others, use TTI springs with your TTI basepads.

  2. TTI Extra Power Extended Length Spring

    Posted by Unknown on Nov 6th 2017

    very pleased,works excellent with mag extension.

  3. Great product.

    Posted by Unknown on Dec 8th 2016

    Use these in my Smith&Wesson mags with the extension, work great. 23 rounds!!

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