Squirrel45 Posted February 12, 2022 Share Posted February 12, 2022 Hi everyone, does anyone know the factory mainspring weight for the Czechmate? Iv looked all around and see anything from 9lb to 20lb I plan on running a steady diet of SRPs ? thanks Squirrel Link to comment Share on other sites More sharing options...
Amra86 Posted February 12, 2022 Share Posted February 12, 2022 The factory spring should be 20lbs. I have over 13,000 rounds on my original spring. It still sets off SPM primers no problem. Link to comment Share on other sites More sharing options...
Squirrel45 Posted February 12, 2022 Author Share Posted February 12, 2022 That's good to hear, iv got no idea how many this ones got on. Iv got around 10k through it but bought it used. Are your running an extended firing pin ? Link to comment Share on other sites More sharing options...
Amra86 Posted February 12, 2022 Share Posted February 12, 2022 I run the factory firing pin. Link to comment Share on other sites More sharing options...
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