I don't like night sights
A recent gun purchase with night sights was shooting a smidge right. I didn't want to send the gun back to the manufacturer, as I'm impatient and I like to try to do things myself, so attempted to drift the front sight myself. I failed, as the front sight was tighter than a tick. In the process I broke the adhesive and the vial came loose.
I purchased a replacement, and had a smith install it. In the process - you guessed it - the adhesive broke and the vial came loose. It looked fine installed, but after 200 rounds the vial was pushed back into the sight from recoil.
The good news is the gun is now zeroed. Yes, I could complain to the smith that did the install, and maybe I'd get a new sight....and then I'd go through the replacement process all over again. So I said screw it. I took some JB weld, plugged the hole and let it dry. Next day I painted the JB Weld white. I noticed the white dot is a lot easier to pick up than the rear night sights. I'm thinking I'll just paint over the rear night sights, too. I'm a guy that likes symmetry.
The half life of tritium is 12.3 years, meaning in 12.3 years the sights will have dimmed 50%. I like this gun (Colt Defender Combat Elite 9mm, to go along with the .45 version) and I'll have it the rest of my life. Seems silly to have the dang sights replaced in 12 - 15 years. White paint is a lot cheaper, too.
I've never been impressed with night sights, and after this episode I'm a "no thanks" on them. Guess I'll never be an "operator," but I can live with that.