Originally Posted by
straitR
I've removed a lot of FSB's over the years, for myself, my friends, and friends of friends, but I recently ran across the first one that I haven't been able to remove, S&W M&P OR factory gas block. It belongs to my buddies girly friend. It's completely stock and she bought a KMR that we were going to install. We tried for over an hour and a half with progressively bigger hammers, multiple punches, a torch, and PB Blaster. I was pretty bent that I couldn't get the thing off to be honest. That was in May, and to this day, nobody has got that single pin out. Beats me.
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