I just about fell out of my chair as I read this...
I thought MPI (along with HPT) was the holy grail for AR bolts.
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Hope he explains.Quote:
MPI is not important at all and I am actually offended by the stupidity of it.
It was discussed here: https://www.m4carbine.net/showthread.php?t=81215
what are the list of companies that sell carpenter bolts?
BCM and Colt for sure
LMT and DD?
Very good discussion with a few details left out to make a decent decision though, mostly due to company secrets (no negative connotation implied). Failure rate during HPT/MPI of current bolts would be nice to know before moving beyond that.