I recently got the Challenger Arms Plainsman CO2 gas pistol back from being resealed a couple of weeks ago. Unfortunately the paint that I had used to restore it reacted badly with the oils used during the service. Not to worry, over the last couple of weekends I have repainted it with automotive satin black rather than an acrylic paint. The finish is even better than before! I am yet to paint the inlet lettering white. I may try a different technique of wax crayon instead of paint which if not carefully applied can remove the black paint in the process!