The C & H Precision BUIS-AB-GL-RH-285BF-285BR is an all-black back-up iron sight set engineered to match Glock MOS factory configurations or Walther PDP optics-ready slides running an adapter plate. This particular variant features a blacked-out front sight post and a matching blacked-out rear notch to minimize visual clutter inside your electronic sight window. The identical 0.285-inch profile heights are calculated to produce a specialized LowWitness orientation, positioning the analog sights within the bottom 1/6 to 1/8 of the field of view. This layout guarantees the physical sights stay unobtrusive during primary red dot deployment while remaining fully accessible in the event of an electronic component failure. Machined from rugged steel, this sight set stands up to heavy slide recoil and provides a dependable emergency fallback solution. C& H Precision Back Up Iron Sights For RMR / Holosun Fits Glock Or Walther PDP – Optics Ready/Direct Milled BUIS-AB-GL-RH-285BF-285BR