RE: How to fix stripped screw (allen) on sights?
Your best bet would be to go to a gunsmith....unless you have an 'easy out' and feel comfortable doing it yourself.
Sorry I could not be of more help.
Now what I do. I add a drop of Loc-Tite and jsut snug it. I never have had a problem either getting them out or theat dang little allen screw coming loose. And it has stopped me from stripping them.
JW