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Discussion Starter · #1 ·
I installed an APEX polymer trigger in my FS 40 cal. M&P 1.0, along with polishing the trigger bar. It was still having that gritty feel before the trigger broke. So, I did a little research and found the answer to my problem; the APEX USB (Ultimate Striker Block). After installing it, along with the spring that came with it, it now has made my trigger feel much better than a 2.0 trigger. If your 1.0 trigger has a gritty feel to it, the USB is the answer to your problem.
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