Trijicon Bright & Tough Night Sights set the standard for a quality handguns night sights. Designed with strong steel body housing, silicone rubber cushioning and aluminum containers for the tritium vials, these sights rightfully earned the word "tough" in their name. The Bright & Tough lamps also have a sapphire jewel cap which not only evenly distributes emitted light, but they effectively protect against solvents and puncture. This specific Suppressor Height set is ideal for use with an attached silencer or slide mounted red-dot sight such as the Trijicon RMR.