If u painted your plastic parts with silver/aluminum first, then a light coat of black couldnt u "weather" them that way. Id try it but i only have cyclone mods on mine so only forgrip and trigger guard/frame are plastic. If i pick up a mag/magwell soon ill give it a go. Altho you'd probably have to make sure the metallic paint was a hard finish like "Duracoat" (Dbug your welcome for the product plug
) and the black a generic flat/satin spraybomb.
Could work in theory, could fail miserably in practice. Just dumpin ideas.