I've got an older Taurus .357. The front sight has an orange plastic (?) insert, which is now loose and will easily slide out of the dovetail it's in.
CA glue might be too brittle, contact cement isn't going to work. Epoxy has possibilities, but would it stand up to cleaning solvents?
What do y'all think about cutting a groove into the glued edges, both on the insert and the sight post itself? Not deep, just enough to give the glue a place to grab.