XS Sights DXT2 Pistol Sight Green Glock 17,19,22-24,26,27,31-36,38,45XS Sights DXT2 Pistol Sight Green Glock 17,19,22 24,26,27,31 36,38,45 Fits Glock models 17, 19, 22 24, 26, 27, 31 36, 38, 39, 45, and 47; Tritium powered front sight for visibility in low light; High contrast green Glow Dot absorbs ambient light for enhanced brightness; Standard Dot front measures 0. 140 inches for precise targeting; Low profile V rear sight provides greater front sight visibility; Simple "dot the i" sight picture for fast alignment;