I have a Glock with kimber night sights long gone dim. Has anyone ever ever pried out the tritium tube and replaced it with a gold/brass rod? I shudder to think that a set of Novak black rear sights with gold bead front is half what I paid for the pistol and almost double the price of new night sights. By the way, if you are in the market for night sight, buy Novak or Trijicons. The tubes can be replaced for a nominal amount. kimber/meprolights does not have tubes that can be swapped. You have to replace the whole set, ditto for Siglights. Follow the money, kimber nightsights are priced at about 80% of Trijicons but have 50% of the life.