Viridian RFX 45 Features The Viridian RFX 45 is built around a closed-emitter design which routes the dot through an internal tunnel for faster aiming point acquisition than an open reflex sight and better resistance to debris blocking the emitter. Its 6061 aluminum housing is hard coat anodized giving the sight a rugged corrosion-resistant shell rated IPX6 for water resistance and built to handle an operating range of negative 4 to 130 degrees Fahrenheit. The 5 MOA green dot reticle is viewed through fully multi-coated glass for a clear distortion-free picture and 90 MOA of windage and elevation adjustment gives shooters plenty of room to zero on a host platform. INSTANT-ON technology wakes the sight automatically the moment it senses movement and puts it to sleep after two minutes of inactivity balancing readiness with battery conservation. Power comes from a single CR2032 battery rated for up to 50 000 hours of run time with 10 total brightness settings split between 8 daylight and 2 night vision levels so the dot stays visible without washing out a scene through night optics. The RFX 45 ships on an ACRO footprint and includes an RMR adapter plate letting it mount directly to ACRO-cut slides or onto RMR-pattern cuts with the included hardware. At just 1.73 ounces and measuring under two inches long the sight adds minimal bulk to a carry or duty pistol while still delivering a durable weather-resistant optic. For shooters who want Viridian s green dot visibility with flexible mounting options the RFX 45 is a complete ready-to-mount package for sale at GrabAGun. Viridian RFX 45 Specifications Manufacturer: Viridian Weapon Technologies Model: RFX 45 Type: Closed Emitter Reflex Sight Color: Black Reticle: 5 MOA Green Dot Compatible Hosts: ACRO RMR via included adapter Objective: 24mm x 15.5mm Eye Relief: Unlimited Lens Coating: Fully Multi Coated Max Adjustment: 90 MOA Battery: CR2032 Battery Life: Up to 50 000 hours Brightness Settings: 10 Total 8 Day / 2 Night Vision Housing Material: Machined 6061 Aluminum Hard Coat Anodized Environmental Rating: IPX6 Operating Temperature: -4F to 130F Dimensions: 1.9 x 1.1 x 1.1 Weight: 1.73 oz Click Value: 1 MOA Available At: GrabAGun