FWIW, the current Charter Arms company will repair any of their revolvers, no matter what age or who owned the company when your gun was made. Go to their company web page, look for the contact email info and tell them the SN, type of gun and the problem and they will get back to you shortly.
I did this when I got my 2 CA revolvers, I was so impressed, I emailed them to let them know, and got email back from the CEO and owner of the company, who said he passed that good work to his employees.
The NEWER and current versions of Charter Arms revolvers are re-designed, VERY solid and very accurate. I have the .44 Bulldog, and a .38 Off Duty hammerless, and have had no problems at all with either of them.