I stripped it completely down. Used 80 grit AlumOxide for a more aggressive finish vs. 120. I sprayed the slide and RMR cover Cerkaote Burnt Bronze, and the plastic was sprayed in Patriot Brown. Oven baked at 170/250 for 2 hrs plastic/steel. I opted to mix this at 20:1 to give me the finish I was looking for. I also cut down the mag button and slide lock surrounds per my preference. I like the finished product. During assembly I did not baby this at all and the Cerakote did not even scratch.