I don't have night sights on my 1911's but I used white finger nail polish to brighten my front sight up. The little dot seems to wear if you use the pistol for EDC and eventually wears down so it's hard to see. My wife had some real white finger nail polish and I used that. I may be different but I ONLY use my front sight to aim with. Some guys put night sights on, some use the fiber sights, but I am old school. It makes a real difference when it comes to double tapping. The sight picture is much easier to re-acquire after firing the first round. MHO only, do what's best for you.