S&W did some blackened SS guns for a HP department, several years ago- they would not refinish them, as the process was prohibitively expensive. Black chrome would be ok, as long as it is not a carry/much used piece- BC is roughly equal to electrloess nickle, in wear resistence(from what I've been told).
A polymer finish will run about the same as BC.
Check in with Cogan Custom/Accurate Plating&Weaponry, Ford's Guns, Checkmate, and possibly Birdsong. They'll know best....:wave:
there are a number of coatings you can have applied. I have a Kahr P9 that has the stainless slide but it has a tungsten DLC? coating that makes it black. It's a hard coat that has held up to a kydex holster for a long time.
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