They can be re-heat treated but I have no idea of the cost or even where. Probably New England Custom Guns could refer you to someone or they may do it, I don't know. Maybe Turnbull? He does some exquisite case hardening so I would think he is quite knowledgeable about heat treating.

I'm no blacksmith or gunsmith but from working on machinery over the years have heated a lot of metal and that thing looks as if it got quite hot.

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