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ISMI 1911 Mainspring (Hammer) 19 lb Reviews

4.8 Rating 20 Reviews
Read EGW Guns Reviews

Also available in 17lb or 22lb. These ISMI Springs are made from a stainless alloy 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. 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.
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 www.P65Warnings.ca.gov.

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Location:

52 BELMONT AVE,
QUAKERTOWN
Pennsylvania
18951

Really impressed with difference 19 lb hammer spring made with my light Bullseye loads in 4 1911’s
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Posted 3 weeks ago
Author didn't leave any comments.
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Posted 1 month ago
Second one I have purchased. Perfect fit and replacement. No more issues on either 1911 DS.
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Posted 1 month ago
Improves trigger pull and function of the pistol. I paired it with a 14 lb recoil spring.
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Posted 2 months ago
Author didn't leave any comments.
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Posted 2 months ago
Good product, smooth operation exactly what I needed to do,highly recommended.
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Posted 3 months ago
Installed in a Tisas 1911 ds along with a standard 1911 in 9mm and couldn’t be happier, will be ordering more
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Posted 4 months ago
I buy all my parts from you guys....that says something
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Posted 8 months ago