Trijicon HD Night Sight Set Orange Front Outline, Glock 42 43 - GL113-C-600785.pTrijicon HD Night Sights are a self-luminous, three-dot night sight set of unique design. The front sight features a highly visible photoluminescent paint outline to quicken sight acquisition. The 'U' notch rear sight is angled and serrated to reduce glare and aid in front-sight focus.