I've used Trijicon with success but I've heard Meprolights are good too. If you're looking for non-night sights, I'm not sure what's out there.
"You have enemies? Good. That means you’ve stood up for something, sometime in your life." - Winston Churchill
Suggested gun control movement talking point: "We're OK with guns to keep our families safe, we just don't want you to have them." - Joe