Guys, it always tickles me to look under the latch of my 1916 SS and see that teeny-tiny elevation screw for the sight. I don't know that I've ever seen a smaller screw on a firearm.
Did the pistols come with a screwdriver that would fit that little thing? I am not aware of one that came from S&W.
Seems like years ago I saw one of the S&W "combo set" screwdriver kit and none of those blades would get in that minuscule slot.
Regards, Ralph Boineau in central South Carolina