Trijicon DI 3-Dot Glock Handgun Night Sight Set - Green - Building on decades of proven engineering and manufacturing excellence in tritium and fiber optic aiming solutions comes the Trijicon DI Night Sights. These sights are designed for shooters wo want daylight brightness and a constant aiming point. The dual illuminated Trijicon DI Night Sights are equipped with an industry-first, interchangeable fiber. This dual-illumination technology amplifies collected light, ensuring an ultra-bright aiming point in any light. Fits Glock Models: 17/17L/19/22/23/24/25/26/27/28/31/32/33/34/35/37/38/39/45; Professional Installation Recommended; Rear Notch Style: U-Notch; Does Not Fit MOS;