1903 Mark I Finish

[Chuckindenver]

manganese phosphate would be the closest choice available today. Iron Phosphate is not intended to be used on firearms.

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[edlmann]

So if the original finish was Parkerizing, would this be zinc, manganese or iron phosphating?

Iron Phosphate is not intended to be used on firearms.

I would think that any sort of finish involving iron would be susceptible to it's own rust issues. Is that it?

FWIW; AFAIK; IMHO; YMMV; yadda, yadda, yadda.

Regards, Ed Mann

Bobby Bowden is doing a fine job - just leave him alone.

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[Sgt. Saunders]

Thanks Gentlemen!!!!!!!