Take a look at the 10-8 sights for Glock. The rear sight is serrated and plain black, and they have different types of front sights. I've got them on my 19, which is my EDC gun, and I went with the tritium front. For competition I'd recommend the Fiber Optic though.
"Breathe when you can, shoot when you should."
"Qui desiderat pacem, bellum praeparat; nemo provocare ne offendere audet quem intelliget superiorem esse pugnaturem"