Yip, What I did was put 90/10 solder on the edge of my front sight. When I want it bright in the woods, I just scrape it with my knife edge. When I want it dark in the bright sun, I just rub a little fouling from my pan, tarnishes in a second. When needed, I just refresh it with my soldering iron lightly tinned. If it gets a little over the side, just scrape it with your knife and touch up the brown with a little yellow mustard. Works for me.