My personal opinion shouldn't matter much. I rather like the Meprolight sights or the Glock OEM night sights personally. I have a couple Glocks endowed with Trijicons, and that's why I prefer the Meps now. Just years of experience and experimentation. Generally, the Meps will run you less than Trijicons as well and in my opinion, give a better profile under any shooting conditions. Not advice....just personal opinion. For what it's worth. Shop around, and my best to you with your new 4th gen G19! Glock on!