I'm thinking about getting an airbrush setup to finish my new build. My question is, are you guys just spraying over the serials, markings and going back to touch them up? Do you use white paint to do that or just spray over everything and leave them black? Any recommendations on products for the white paint?
I want everything to match so I think I'm gonna do everything minus the wood of course.

I paint over all the serial numbers in black and then fill in the original serial numbers (front trunnion, bolt, bolt carrier, the rear sight leaf  numbers and sometimes dust cover) with a white lacquer stick that sort of resembles a crayon.  I don't highlight the receiver serial number though.