The Trijicon Fiber Optic Suppressor Height Sight Set for Glock Standard MOS Frames delivers an elevated, battery-free open iron sight solution specifically built to clear obstacles and co-witness with slide-mounted electronics. Drawing upon the advanced light-gathering chemistry found in Trijicon's legendary ACOG combat optics, the front post concentrates ambient light to form an ultra-brilliant daylight aiming point. Its heightened profile is specifically engineered to clear the outer body of muzzle-attached suppressors or provide a flawless lower-third backup sight picture when looking through a red dot optic. CNC-machined entirely from solid steel and protected by a robust matte phosphate coat, the assembly effortlessly withstands aggressive holstering and severe slide cycle recoil g-forces. Additionally, the rear sight blade features a steeply hooked forward face explicitly tailored to facilitate reliable, emergency one-handed slide clearance against a belt, boot, or rigid barrier. Trijicon Fiber Optic Suppressor Height Sight Set w/ Red or Green FS for Glock MOS 9mm & .40 S& W 601194