STI Magblock 10/26 (9mm) for 170mm Magazine

This Magblock fits the STI 170mm 26 round 9mm magazines and will limit them to 10 rounds. It is held in place with spring tension alone or can be epoxied if required to be permanently installed. Block locks into the follower.


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SKU: 26227 Categories: ,
*Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors. Stock photos provided to us by the manufacturer do not necessarily represent the actual item being purchased. Please refer to the title and description of the item before you place your order.

STI Magblock 10/26 (9mm) for 170mm Magazine

  • Easy installation at the base of the spring
  • Fits 26 round 9mm Factory STI 170mm magazines
  • Held in place with spring tension or can be epoxied for a permanent modification
  • Lightweight and will not interfere with magazine reliability
  • Lightweight, efficient design
  • Limits the magazine to 10 rounds of 9mm
  • May need sanding shorter if your magazines have a floorplate locking plate
  • Model: STI_170MM_10/26
  • No modification to the magazine is required
  • Simple install to make blocked 10/26 STI magazines
  • Tested on factory STI 170mm magazines
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