First, I have to tell you I am a huge fan of Glock handguns: I own several, and shoot them regularly. I mention this up-front, because you may not believe I'm a fan after reading what I'm about to type.
Originally Posted by flieger67
Stock Glock sights suck. It is the primary (only?) weak point in their handgun design, in my opinion. They are usable, but very easy to damage; accidentally bang the sight(s) against something solid, or (cringe) drop your weapon, and the sights will probably be toast. The adjustable rear sights are even worse, in that they have less durability and are not even as user-friendly as the stock fixed sights, having less top-edge surface area to align with the top of the front sight due to the design. This is what the adjustable rear looks like:
It requires a tiny screwdriver to adjust, the elevation only has three or four "steps" to choose from, and you can see how small the "adjustable" portion is, compared to a stock rear sight.
I heartily recommend the factory night sights, or those made by Meprolight (my personal favorite) or Trijicon (have owned some of these also, a set is currently mounted on my son's G19, and only a tiny preference separates them from the Meprolights in my mind). I would choose the stock fixed sights over the factory adjustable sights, but I'd only keep them for as long as it took to save-up the money to replace them with Glock factory night sights, Meprolights, or Trijicons.
If you absolutely don't want night sights, but want something more durable than the stock sights, I believe Glock also offers a set of plain steel sights for a small upgrade fee.
"Placement is power" -- seen in an article by Stephen A. Camp
(RIP, Mr. Camp; you will be remembered, and missed)