The Trijicon Suppressor/Optic Height MOS Sights are tall, self-luminous iron sights purpose-built for slim-frame Glock pistols, including the G42, G43, G43X, G43X MOS, G48, and G48 MOS. This variant features a stealthy black outline around both the front and rear green tritium lamps, creating a subdued, clutter-free target profile under daylight while glowing clearly in low-light environments. The blacked-out front outline is highly favored by shooters who want an emergency co-witness baseline without distracting the eye away from a primary red dot reticle. Built from solid steel, cushioned with silicone rubber, and capped with protective sapphire crystal jewels, these robust sights are elevated to clear the body line of attached suppressors and sit at a functional height to backup slide-mounted miniature red dots. Trijicon Suppressor/Optic Height MOS Sight Set w/ Black Outline/Green Tritium Front & Rear for Glock 42,43,43x,43X MOS, 48, 48 MOS GL243-C-601175