Great for no light simple installation with a rear sight tool - AmeriGlo Pistol Tritium Night Sights, Glock 17, 19, 22, 23, 24,26,27,33,34,35,37,38,39, Classic Green Front

I wanted to use suppressor sights to co-witness while using a red dot but I wasn't sure about using colored night sights with a red dot in very dark to no light conditions. I used a rear-sight tool for simple, quick, and easy to installation. The White Outline Green Front & Yellow Rear sights worked great for very dark to no light conditions and did not cause any issues for me using a Holosun red-dot. This color combination allowed for quick sighting of the red-dot without causing confusion of contrasting colors. A green-dot with a green front night sight may cause issues.