I had some fiber optic sight leftover from a repair job and used it to make a new sight on the wife's P22. Guy I know liked it and wanted one made for his Marlin model 60. Problem is, there's not a lot you can drill on the sight to attach it. What is the best form of bonding fiber optic plastic to the painted(or stripped if necessary) metal? I tried some blue loctite in a feeble attempt but it was easily knocked off. I would try superglue but that would probably melt the plastic, and I only have one chance as this is my last piece of site pipe. For anyone with suggestions, please remember that this is Iowa, at best we have Home Depot so it has to be something you could find in there or a small hardware store.