I just got one in a trade. I took it out for a test round of trap, ran great. got it home to field strip it for a quick cleaning and found more crud inside than I have ever seen before, even compared to abused .22 semi autos. After a mineral spirits bath for the trigger/hammer group, bold disassembly and scrubbing with a brass brush (yes, that bad), and scrub down it is pristine inside. My recommendation is to first clean the heck out of it. The bolt is kinda goofy to get back together, well the firing pin installation anyway, but other than that is it really easy.