The SI recoil spring for GLOCK™ pistols allows one to fine tune the timing and recoil characteristics of their GLOCK™ firearm. While the factory springs do work reliably with most ammunition, they do leave some things to be desired when it comes to handling characteristics, and they wear out over time requiring replacement. The reduced power springs also work great with lightened slides. Tune your GLOCK™ pistol for greater reliability and speed up follow up shots with an SI recoil spring.

• (1) recoil spring

• Wound from flat wire for reliability and longevity
• 17-7ph stainless steel resists corrosion and lasts much longer than factory carbon steel springs.

COMPATIBILITY: For GEN3 GLOCK™ 17,17L,20,20SF,21,21SF,22,24,31,34,35,37
NOT COMPATIBLE: For GLOCK™ Compact, Compact Crossover, Subcompact, Subcompact Slimeline


NOTE: Very light reduced power springs may not function 100% in stock platforms when feeding from reduced capacity magazines.

DISCLAIMER: This product is not manufactured, authorized, endorsed,
or warranted by GLOCK. GLOCK does not warrant or represent that
this product is compatible with GLOCK pistols.

DISCLAIMER: “GLOCK” is a federally registered trademark of
GLOCK, Inc. and is one of many trademarks registered by GLOCK, Inc.
and GLOCK Ges.m.b.H. Neither Joe Bob Outfitters, LLC, nor this site
are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc.
or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to
advertise the sale of GLOCK pistols, parts, or components. For
additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and
parts visit www.glock.com.