The Viridian RFX42 Micro Green Dot Shield sight is a compact, closed emitter reflex optic designed for fast and precise target acquisition on Shield footprint pistols and similar setups, delivering a 3.5 MOA green dot for quick aiming in varying light conditions. Built by Viridian Weapon Technologies, this 21mm objective scope provides a true 1X power field of view with a clean, unobstructed sight picture, ideal for close-quarters engagements, sport shooting, and personal defense scenarios where rapid dot acquisition matters. The black finish blends seamlessly with a variety of pistol finishes, while the shield-compatible footprint ensures secure mounting without adding excessive bulk. The RFX42 features a reliable green reticle that remains visible in bright daylight and through dim interiors, enabling shooters to align the dot with minimal aiming effort as shots break. With its compact footprint, durable construction, and straightforward operation, this micro dot sight supports fast target lock-on, improves sighting speed in dynamic shooting drills, and provides a dependable aiming solution for everyday carry or duty use, backed by Viridians reputation for precision optics. Model RFX42, 981-0176.