Another thing you can do is put black electrical tape on the end of a nail set. Kind of pad it a little. Rememer, a little bit makes a big difference so do not be too hammer happy.

If you every have to file down a front site .... to avoid damage to the rifle barrel near the site. I read take a plastic milk gallon container and cut a chunk off. Then make a slit in it and put that over the sight. This will protect the barrel when the file you are using to file off a little of the site (and you know this is going to happen.. Murphy's Law demands it) and the file slips and skids across the barrel.