Matte gray anodizing help Win 1200 trench

[tmturner45]

I have an original M1200 trigger pack from a lot of M1200 parts I bought years ago. Everything was gray parked, follower, mag tube etc, How is it possible to attain this color on alloy parts? Notice how the TG matches the shell carrier. On the right is a metal trigger pack from a plain 1200.
http://i136.photobucket.com/albums/q169/tmtbucket/parts/20151116_1546492_zpspf4ylfur.jpg (http://s136.photobucket.com/user/tmtbucket/media/parts/20151116_1546492_zpspf4ylfur.jpg.html)

[gwp]

It should not be difficult for an anodizing company to finish in the color you want. If you want to do it yourself this company's supplies may help.

http://www.caswellplating.com/catalogsearch/result/?cat=0&q=grey

[Sunray]

Paint like Duracoat, et al will do it. Krylon, Testors, etc. make spray flat grey, as I recall. Downside is that you'll have to completely disassemble the thing first. You'd have to do that with any coating/plating method too.