Gold lettering on new Brownings...this is just gold plating. It is possible to reblue a gun with gold plating as long as you're careful not to polish into the plating. If you really want to replace the gold, you could have stencils cut and have a gold plater "wash" over the stencil.
Anything else...Cerakoting, nickel plating, TiN coating etc, will cover the gold plate. When I nickel plate Brownings, I hand polish the gold plating off prior to the glass-beading and nickel plating.
Perazzi have gold inlay letters, some firmly seated into the metal, most not. Most of the time the gold lettering will blow out during the glass beading.