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Officer's Flat Wire Recoil Spring ISMI 22 lb
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Officer's Flat Wire Recoil Spring ISMI 22 lb

Product #: 10661
Price: $8.99


In Stock
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ISMI Premium Flat Recoil Springs are used in EGW’s guide rod kit for Springfield and Officer’s model pistols.

Requires ¼” guide rod.

All ISMI Springs are made from silicone chrome instead of 150 year old music wire. Every ISMI spring is heat treated, shot peened & stress relieved to enhance durability, consistency and reliability.

ISMI is a contractor of the U.S. government and produces springs used in machine guns with incredibly high cycling rates. Also, the creator of ISMI springs obtained his knowledge from extensive research in the development of springs used in Indy car racing.

Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to

Product Reviews

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Reviewed by nscr4cab
nscr4cab bought "Officer's Flat Wire Recoil Spring ISMI 22 lb" on our website
06/04/2017 - 01:55:37 AM
Heads Above Stock Spring
Purchased two of the Officer size flat wire recoil springs along with a .25in guide rod back in early 2016. Installed in a RIA M1911-A1 CS to replace stock (24lb round wire) recoil spring which died before 500rd break in. Have not looked back since installing this ISMI flat wire spring in my RIA M1911-A1 CS. Perfect timing, zero failures, thousands of rounds fired. Probably will be years before I need to use the spare spring. With the polishing of the feed ramp and polishing of slide rail and grooves along with this spring, performance is outstanding. Have since installed a flat wire spring in my RIA M1911-A1 GI GOVT FS with the same complete satisfaction. Highly Recommend the ISMI Flat Wire Recoil Springs. JD590.
Reviewed by nscr4cab
nscr4cab bought "Officer's Flat Wire Recoil Spring ISMI 22 lb" on our website
05/18/2017 - 12:59:32 PM
Longevity /Perfect Function
Having purchased the IMSI flat wire recoil spring three years ago from EGW its time for a review. This spring along with an Officer size 1/4 inch guide rod have replaced the stock spring & guide rod of a RIA Compact M1911-A1. The stock (round music wire) recoil spring had worn out at approximately 500 rounds. Understand that the flat wire recoil springs have a service life tens times longer than the round wire spring. Machined a small sleeve/bushing to accommodate the quarter inch rod. The RIA reverse plug is is for the stock 1/3 inch guide rod. Placed the machined part inside the reverse plug, added spring and guide rod and have not looked back since. For three years now, have not had one issue with this flat recoil spring. Zero battery problems. Zero timing problems Goes bang every time. With longevity and reliability proven to this shooter, I highly recommend the ISMI springs to all 1911 owners. Thank you EGW.