I have a (Generation ONE I guess) Glock 17. It belonged to a deceased police officer I worked with WAY back in 74-76. I knocked off the rear plastic sight and I NEED to replace it. I am thinking about going with express sights, Shallow V rear and Round dot front. That is my Favorite type sight. I have trouble lining up conventional sights. The elevation is fine, but the windage throws me off all the time.