OSight Osight X, Handgun Sight, RMR Footprint, Matte Finish, Black, Multi Reticle System, Rechargeable Battery, Includes Charging Cover and Adjustment Tool OSIGHTXRDDOTBK Engineered with advanced anti-reflective lens coatings, this sight maximizes light transmission for unmatched clarity, allowing you to quickly lock onto targets with pinpoint precision. A 0.94" x 0.85" window provides a larger sight picture, enabling faster target acquisition and quicker follow-up shots. The OAL housing is tougher and stronger, nearly as lightweight as industry-standard 7075 aluminum, ensuring durability and a professional edge over time. By adopting the de facto industry standard (Ruggedized Miniature Reflex, or 407c/507c footprint), Osight X GN is a versatile addition to many full-size and compact pistols. Osight Picatinny mounts add even more possibilities with both high and low options that work with most rifle applications.