I just thought i would post some pics of my glock after the color fill and polishing the barrel, since everyone has been so helpful. Thanks to everyone for the advice!
Yeah Soviet's vidy was great stuff. I use it for sights too, works great on old stained hard to see dots or lines. I also have done magazines too. Old eyes and dim light conspire to make me grab the wrong magazines only to discover my error after a 20 minute drive to the range.
Easy enough to remove if you want change or sell and the owner doesn't appreciate a nice color fill.