Trijicon Suppressor/Optic Height Sights continue the low-light and no-light prowess of the original Bright & Tough Night Sights. With unique versatility for the ever evolving pistol landscape, Trijicon Suppressor/Optic Height Sights are designed for pistols fitted with suppressors and also as a backup iron sight for pistol-mounted red dots. Housed in a metal body and cushioned within silicone rubber, Trijicon Suppressor/Optic Height Sights feature a unique shock-resistant design. Each lamp is capped with a sapphire jewel to help evenly distribute the light while protecting the lamp from solvents and puncture. Contained within aluminum cylinders for additional protection, the lamps are mounted on silicone rubber cushions to withstand shock and heavy recoil. Professional installation recommended. Front Sight Width: 0.144″. Front Sight Height: 0.503″. Rear Sight Height: 0.554″.