There were 1500 greyish blue navy edition produced...1500 OD green Army edition produced.
That one you have there is like the special LCR they were auctioning off a while back. I have read nothing about them producing them like that and took it as a one of a kind type of a thing, or atleast very very few i would think becuase they were using it as an auction gun.
I want to say it was no special coating for the metal on yours and maybe bead blasted... Jsust going off memory though and didnt really look into it very much.. Unlike the Talo editions that were coated.