The Viridian 9810059 RFX45 Closed Emitter Green Dot Sight in Black Anodized is a compact, reliable aiming solution designed for fast target acquisition on Picatinny rails, with a 24 mm by 15.5 mm objective that houses a bright 5 MOA green dot. This red dot silhouette, built to fit ACRO footprints, delivers a precise, unobstructed aiming point with a true 1X magnification, allowing for rapid engagement in dynamic shooting scenarios. The 5 MOA reticle provides generous field of view and quick reticle visibility in varied lighting, making it suitable for close-quarters engagements, hunting, and sport shooting where speed and accuracy are paramount. Its closed emitter design helps protect the glass and internal components from debris and environmental elements, contributing to dependable operation across a range of conditions. With a rugged black finish and a streamlined profile, the RFX45 integrates seamlessly with firearms that rely on a low-profile optic footprint, enabling natural cheek welds and uninterrupted sightlines while maintaining compatibility with standard mounting surfaces. This Viridian sight combines practical on-duty performance with user-friendly ergonomics, supporting fast, instinctive aiming without sacrificing precision.