DAY & NIGHT SIGHT - When the lights go out, your sidearm will not be left in the dark with the TruGlo Tritium Pro Handgun Night Sights, that transition from white dot sights to glowing green dots; The front sight Focus Lock ring provides even faster focus BUILT TO BE TOUGH - You're on the go and count on your handgun to be rugged and reliable; Your night sights should be held to the same standard - which is why the Tritium Pro Handgun Sights are machined from solid steel and treated with a Fortress Finish