Cleaned the M2 today. I have not been able to test fire it yet, but I did not find any material in the bolt, or around the firing pin that should have slowed it down. i followed a different youtube video that showed a deep clean, it involved cleaning the recoil / buffer tube etc. There was significant build up around the sliding plug/bolt in the buffer tube. I dont think that would slow down the firing pin at all but I am glad I got it cleaned up. One thing is for sure, when I have it put back together, its smooth and slick. I am certain it will work fine.
