I bought two Contenders over 30 years ago and am 100% certain that I sent in the warranty cards. So I get on the Contender/S&W website and they want me to send a copy of the sales order before I will get any warranty work done. And of course I can't find them. I emailed them asking to confirm that they had the records of the two serial numbers. Website says they will get back to me in 3-4 days, that was 3 weeks ago. My guess is they are going to take the chance that I can't find the papers so they don't have to honor the lifetime warranty. Looks like I will have to call them to get any answers. Has anyone else gone thru this?