how is the faux case done?
It's a very easy process.
Strip the paint off, polish up with 0000 steel wool, and clean thoroughly with hot soapy water.
Apply cold blueing paste and leave it on for about a minute, then wipe it down under cool running water with a clean sponge.
Repeat blueing process until you get it the color you like.
It may take 2 or more applications to get the finish to where you like it.
A model airplane clearcoat overcoat usually suffices to protect the finish.
BTW - Different brands of cold blue ( Brownell's Oxphy-Blue/Birchwood-Casey/.44-40/etc) will give different colors/results - so if one brand results in a look that's less than satisfactory, just reduex with another brand.