About 4 years ago I found a 'S' Model 58 in bad shape at a gun show for only $150. The cylinder would not open, finish was a rusted nickel over blue, and no grips. I sent the poor .41 mag to S & W and asked to have it restored. S & W called me a week later and told me the cylinder was damaged, the extractor was from a .357 and they did not have the correct parts to restore it. I thought about have them just return it an trying to sell the parts. They offered me a new revolver at cost in exchange. Since they didn't have any 4" 41 magnums, I ended up getting a new Model 317 3" for just under $400. Not sure it was the best deal and did not ask if they would return the Model 58.
Chop

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MSG US Army