All of my range/daytime carry Glocks have those sights on 'em, they work very well for my aging eyes!
Two of my Glocks have night sights, for bedside use and night time carry.
I just center 'em in the rear sight channel, they aim perfectly for me.
"it's hard to make a fed-proof holster that you can still get the gun out of" Bren
USN Corpsman '80-'86.