Find a jeweler in your area that does gold plating. I have done tons of triggers and other parts for all type of guns. It wont last as long as a factory finish but if it is done heavy enough it will last for a while. I just started with a new company and they dont have the set up for gold plating. I have been thinking of setting up at home but dont know if it would be profitable? I only charged $16.00 for a trigger.