The Night Fision NF PLATE+BS 507K Fits G43X/G48 MOS delivers premium co-witnessing sights in the same compact package as your optic plate, offering precision, durability, and value for shooters needing a reliable mounting solution for their red dot sight. Crafted from premium 17-4 stainless steel and machined to tight tolerances, this plate withstands harsh recoil and ensures a secure, accurate fit, while the nitride coating adds durable protection for long-lasting performance. The design is compatible with Glock MOS Slimline models and fits Holosun 507k and other optics with a compatible footprint, allowing most optics that share this footprint to co-witness with the included sights for consistent alignment across platforms. Each package includes extra screws and an installation tool to simplify setup and ensure a secure, repeatable mounting process. The combination of a rugged stainless steel body, precise machining, and nitride finish translates into a dependable foundation for a handgun optic system, enabling precise target acquisition and reliable performance under field conditions. Whether upgrading a duty pistol or a personal defense handgun, this optic plate and backup sight combo from Night Fision provides a streamlined, cohesive solution designed to maintain sight alignment and bolster confidence when it matters most.