The C & H Precision Back Up Iron Sights are high-quality, professional-grade backup iron sights specifically designed for Glock MOS and Walther PDP optics-ready or direct-milled slides paired with a Trijicon SRO red dot. Engineered around a specialized "LowWitness" profile, these sights are intentionally kept as low as possible, sitting between .075 inches and .100 inches into the optic's lower field of view. This compact design provides a clean, unobstructed view of the red dot reticle during normal operation while keeping backup sights instantly usable if the electronic optic fails. Built from CNC-machined steel to withstand severe impacts and hard use, the front sight features a Swiss tritium dot with a bright yellow outline for fast daytime and nighttime acquisition. The rear sight is fully blacked out with a wide notch, ensuring your eyes focus naturally on the front dot or red dot reticle without distracting glare. C& H Precision Back Up Iron Sights For Trijicon SRO On Glock Or Walther PDP-Optics Ready /Direct Milled Slides BUIS-GL-SRO-320TF-325BR