Easily visible under all lighting conditions, the AMERIGLOA(R) Classic Tritium series sight comes with a green tritium lamp/white outline for the front sight and two green tritium lamps/white outlines for the rear sight. Fits: GlockA(R) Gen 5 9mm/.40 SPECS Fits Make: GlockA(R) Fits Model: Gen 5 9mm/.40 Fits MOS Slide: Yes Front Sight Style: Tritium Front Sight Finish: Case Hardened Front Tritium Color: Green Front Outline Color: White Front Blade Width: 0.140 in. (3.56mm) Front Blade Height: 0.165 in. (4.19mm) Rear Sight Style: 2-Dot Tritium Rear Notch Shape: Square Rear Sight Finish: Case Hardened Rea Mfg: Ameriglo