I just bought an Old Model Single Six. Upon getting it, I find that it is still unconverted, but it won't cock or turn the cylinder. The ejector shroud and its works are missing. Basically, I got reamed. How do I send it back to Ruger? Do I contact them first? Do I send it through an FFL? I've never returned one for repair before. It looks like it needs a lot; definitely not as described in the local ad. Thanks.