for day and night shooting, i prefer the amerigle hackathorn sights. at night, its a standard night sight, daytime has an orange ring around the tritium insert that really pops in the light. at dusk and dawn conditions they are like normal iron sights though. hard to see either option in somewhat low light. these are what i have on all of my glocks with the exception of my 26 but only because i havent picked up another set yet.
"Only the dead have seen the end of war." - Plato