Sorry, yes it's a conversion in 38 special. This is the third gun from cimmeron in a row that I've had problems with. The first was a 72' opentop that I don't realy count because I knew about the firing pin before buying and had one ready when I got it. The other was a 60RM and it came with a cylinder and 45 barrel. They replaced that one no problem, but the replacement rubed a ring around the cylinder and a high spot on the water table rubed everybit of blue off the cylinder. I took a hair off a high spot on the bolt, took the high spot down on the water table and rust blued the cylinder, now it's my favorite pistol.
The thing with the 51 is that I sent it back and told them to test fire it as it only does it after fireing. Aparently they replaced the broken hand spring and sent it back after four months of waiting and run around. No matter what they do, this is the last time I buy from cimmeron.