how do i go about painting the front site on my ruger gp100?

I use dif colors of my daughters nail polish! white, neon red, green. lol

Skip that and just buy the hi-viz fiber optic front sight. Takes 5 seconds to pop in. They are wonderful sights. Love mine!

I have Used the wifes nail polish. Eventually I'll upgrade to a fancy sight but for now the polish works perfectly.

actually my gp100 does have the hi-viz and I reccomend it but on some of my other hg's I use the polish depending on what color I'm wearing that day. I like to co-ordinate my nails with my sights.

I've used model paint. Whether you use nail polish or paint, if you are going to use a flourescent color, it is best to lay down a white undercoat first.

 

If your front sight is easily interchanged, then, indeed, get a FO replacement.