M&P 170mm Extended Base Pad +11

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What it does: 
Springer Precision M&P 9/40 170mm extended capacity base pads are CNC machined from aluminum and hard anodized for a long service life. This lengthens the magazine and adds a staggering 11 rounds to your magazine with the factory follower. The unique locking mechanism allows a very solid attachment with a simple backing out of the discrete set screw. They are specifically designed to work with magwells and follows USPSA restrictions. The unique attachment design provides a low profile, sleek design that is very stable and easy to remove. 

  • +11 9mm / 10 .40 Round Capacity 
  • Includes extra power magazine spring
  • .050 Hex driver included for installation
  • Meets 170mm size requirement
  • Magazine NOT Included
  • Made in the USA

M&P CORE, Pro Series, Full Size, and Compact magazines (9mm and .40). Does not work with .45 magazines or restricted 10 round magazines. Does not fit M&P Shield / Bodyguard.