The CT RAD Micro Electronic Sight is a compact open reflex sight designed for use on compact and subcompact pistols. Its recessed, multi-coated lens provides a large window for fast target acquisition. Equipped with the CT RADIANT Ambient Light Sensor, the sight automatically adjusts the brightness of the aiming dot to match your surrounding environment. The sight is easy to install on an optics-ready slide and uses the CT micro footprint, which is compatible with Shield RMS and JPoint footprints. For co-witnessing, the CT RAD Micro has a rear sight notch that aligns with your front iron sight. The sight is built with a carbon-infused polymer that is 30% lighter than aluminum and 30% stronger than standard polymer. The entire CT RAD family features an innovative top strap design that reinforces the optic and reduces stress on the lens if the sight is dropped. Red Dot Platform - COMPACT & SUB-COMPACT PISTOLS Footprint - CT RAD Micro Footprint Reticle - 3 MOA Red Dot User Adjustable - Windage and Elevation Battery Life - 20,000 HOURS (2+ YEARS) Battery Access - Bottom Mount Construction - Nylon + Carbon Fiber Alloy Durability - IPX4 Water-resistant Co-Witness - Notch Cut Shake-to-Wake - CT Motion Ambient Light Sensor - CT Radiant