Samo - samo. Tight screw. Tried supplied Allen wrench. No luck. Applied PB Blaster penetrant. ½ hour later tried again. No luck. Used pliers as cheater. No luck. Applied Kroil penetrant. ½ hour later tried again. It actually seemed to be working, but in reality the supplied Allen wrench was twisting slightly until it snapped off, flush with the top of the screw.
I quit. Email sent to C.S. at S&W.
I wish I had read up on this first. After 40+ years of working on my own guns, this is the first Allen wrench I have snapped on a firearm.
Yep. They unfortunately have a Q.C. problem.
(I have never had assembly/disassembly problems using blue LocTite, but maybe that would not be a good idea. I don't know.)