Charter Arms says that grips from any of one of their revolvers (Undercover, for example) will fit that model from any year.
Since Bannockburn (post 2) could not fit S&W grips to his, then it appears that, whichever example you're going to get, those grips will not fit yours.
I don't know if yours is new, or if you're getting a vintage one, but they are pretty much all decent and solid shooters, assuming they were sold under the "Charter Arms" name, and not under the "Charco" or "Charter 2000" names. I have two from the mid-eighties (one of which is stainless) and one from the mid-sixties.