TruGlo TG231G1 Tritium Green Tritium Front & Rear/Black Nitride Fortress Frame, Compatible w/Glock 9mm Luger/40 S&W, Front Post/Rear Dovetail Mount

Tritium night sights transition from standard white dot sights during the daylight, to glowing green dots in the dark. Tritium does not need batteries. Front Sight Length: 1.0". Front Sight Width: 1.0". Front Sight Height: 1.0". Rear Sight Length: 1.0". Rear Sight Width: 1.0". Rear Sight Height: 1.0". Compatible w/Glock 9mm Luger/40 S&W.