EEH Posted August 2, 2015 Share Posted August 2, 2015 What is the spring rate of the heavy Sti recoil master ? 12-13-14 lbs ? Link to comment Share on other sites More sharing options...
truborshooter Posted August 2, 2015 Share Posted August 2, 2015 around 12 lbs for brand new 5" (5.40" unset) measured on a Secure Firearm Product spring tester. note that the STI recoil springs are around .445 od / .355 id and std recoil springs are around .415-.420 od / .325 id Link to comment Share on other sites More sharing options...
EEH Posted August 2, 2015 Author Share Posted August 2, 2015 around 12 lbs for brand new 5" (5.40" unset) measured on a Secure Firearm Product spring tester. note that the STI recoil springs are around .445 od / .355 id and std recoil springs are around .415-.420 od / .325 id Thanks for the info. Link to comment Share on other sites More sharing options...
Firefight5243 Posted August 5, 2015 Share Posted August 5, 2015 I was thinking of replacing my heavy recoil master with a Dawson tool less guide rod and a 12 lb spring. Trying to get rid of muzzle dip after the slide closes. Link to comment Share on other sites More sharing options...
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