Get Your GLOCK on Target With AmeriGlo Suppressor and Optic Height Sights AmeriGlo sights are machined out of the finest steel this sight set has a green tritium lamp, Orange outline front and two tritium lamp, black outline rear for GLOCKs. AmeriGlo sights are highly visible under all lighting conditions. This set features a 3-Dot setup with front and rear green tritium with an orange outline .315" front and black outline .394" rear. This is an XL height set specially designed for suppressors or for co-witnessing on GLOCK MOS and other optic-equipped GLOCKs. This sight will fit up to a .284" tall optic (measured from the bottom of the rear sight dovetail to the optic deck). AmeriGlo XL Tall Suppressor Night Sight Set for GLOCK Specifications and Features: Orange Outline Front 140" Wide Front Front sight height: 0.315" 150" Rear Notch Green Tritium 2-Dot Black Outline Rear Rear sight height: 0.394" Manufacturer Number: GL-452 Material: Steel Fits: All GLOCK models except G42 and G43