ISMI 17 POUND RECOIL SPRING FOR LARGE FRAME GLOCK MODELS 17,

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ISMI 17 POUND RECOIL SPRING FOR LARGE FRAME GLOCK MODELS 17, 17L, 20, 21,22, 24, 31, 34, 35, 37

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ISMI 17 POUND RECOIL SPRING FOR LARGE FRAME GLOCK MODELS 17, 17L, 20, 21,22, 24, 31, 34, 35, 37

Item #: {{ partNumber | NormalizePartNumber }} Reference Only

UPC: {{ manufacturer.upcNumber }}

Manufacturer:

MFG#: {{ manufacturer.partNumber }}

ISMI 17 POUND RECOIL SPRING FOR LARGE FRAME GLOCK MODELS 17, 17L, 20, 21,22, 24, 31, 34, 35, 37

ISMI 17 pound replacement recoil springs for Glock models 17, 17L, 20, 21,22, 24, 31, 34, 35, 37 are wound from flat wire, heat treated and shot peened for stress relief. Quality material and strict manufacturing control to ISO 9002 standards ensures consistent and reliable function backed by a 12 month manufacturer's warranty.

For optimum results, a Captive Stainless Steel Guide Rod is recommended for use with this recoil spring.

GLOCK is a registered trademark of Glock Inc.

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Frequently Asked Questions For

ISMI 17 POUND RECOIL SPRING FOR LARGE FRAME GLOCK MODELS 17, 17L, 20, 21,22, 24, 31, 34, 35, 37

How often should the recoil spring be changed?
How long will an ISMI recoil spring last?
Should I use a spring buffer?

How often should the recoil spring be changed?

The recoil spring should be changed, at the latest, when it has lost 0.500” of free length from new. At this point, the spring has suffered a considerable reduction in load exerted at installed (when the gun is in battery).
How long will an ISMI recoil spring last?

In independent testing, ISMI spring have endured in excess of 100,000 compression cycles. We don’t recommend going that long between changes however. With an ISMI spring, practice routine maintenance and change it once a year.
Should I use a spring buffer?

We do not recommend the use of a spring buffer. Buffers tend to be a bandage for a recoil spring that no longer performs adequately. Put a fresh spring in instead. Buffers reduce slide travel which can have an adverse effect of feeding reliability. In addition, buffers can break apart during firing and make the gun inoperable.