We had alot of play on some sidetrack gun questions so maybe we need a big gun thread that addresses everything so that members in the future can find all the info that matters in one thread.
I'll start it off with the subject of sights, specifically handgun sights.
I am not a fan of laser sites, red dot sights, or optical (scope) sights. I much prefer steel sights with a big front sight picture since that is the only thing that matters. I have used plain iron sights with just painted dots or bars and shoot fine. I've used night sights that glow in the dark and shoot fine. But, everytime I pickup a laser sight and aim at a spot on the wall, my hand is rock solid steady but the laser is bouncing around like a rat on a cheeto. Its the optical effect of close proximity (gun) vs far projection (dot on the wall). I've never shot with a red dot sight but alot of competitive shooters like it. From my understanding, its not optically enhanced, its just a window with a dot in the middle of clear glass and you put the dot on the target.
Recently, my Trijicon nightsights died on one of my Glocks. They have a life of approx 10 years as its basically decaying radioactive matter that gives the glow. One thing I always made sure of with night sights was to make the front sight a different color than the rear sight. Why? Go in a dark closet and yank up the pistol to eye level in total darkness with both the front and rear sights are green and you may not know whether the front sight is centered or off to the side. But, if you have red front sight and green rear then its immediately obvious that the red must go between the two rear greens.
Instead of going back with night sights, I went with fiber optic sights of different colors. If there is any ambient light at all (tiny is ok) they glow like they are on fire. I really liked the sight picture and brightness. I am now in need of another set of sights for another Glock and will buy the fiber optics. Nice equipment.
For older guns with just plain iron sights, you can buy white flourescent paint and paint over the bars or dots to where they glow in the dark. It works fine. I found some at a gun show but you can also find it at craft stores. A cheap alternative to see if you like it is to use paper white out and paint over your sight bars/dots. Its bright but if you don't like it, you scrape it off with a fingernail and no damage done. I know some people actually use the same thinking on their magazines by putting either a dot or arrow at the front of the mag to show which way to load it in the dark. Sounds stupid until you are in a stress fire situation in the dark and then seems smart.