CAP Sight Set - Green tritium lamp, Square outline front and Painted bar rear, Glock Sight set with green tritium lamp, square outline front and painted (non tritium) bar rear for Glocks. Designed with large, highly visible front and for rapid sight acquisition. Paint bar on rear is horizontal under notch. T-CAP variants have a thinner front for increased target precision. Thin front is standard on Glock 42, 43 to accomodate smaller sight radius. Description: Sight set with green tritium lamp, square outline front and painted (non tritium) bar rear for Glocks - LumiGreen OutlineFits Glock 17, 19, 22, 23, 24, 26, 27, 33, 34, 35, 37, 38, 39 Front: .120"W