Meets my expectations - Troy Tritium Micro BattleSight M4 Top Mounted Deployable Iron Sight

These sights are very nice and built like a tank. They are metal so they are heavier and their movement is a little gritty...so I wouldn't expect them to smooth like plastic. I oil/lube them like they are a metal piece of the gun. Right now I'm just using the front sight on a KSG. The tritium is present, but it is not large or super-bright. Again though, this is not outside my expectation.