Congrats on the 4566 Melonite.

When I asked about them I was once told that a small production run had been made for the Marshal's Service (pre-TSW), and that some had been left over from that run. I wouldn't be surprised to learn that some other agency had requested some, as well.

I thought about picking one up one time but it was too much money for something that wasn't really anywhere near the top of my 'must have' list.

I can't put a date to when S&W first started using Melonite Processing Salt™ Bath Nitriding System on their guns, but I remember it being offered early in the Sigma Series, and then there was the 5906M (Militar). Anybody remember when the first 5906M was produced?

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Ret LE Firearms inst & armorer