As seen in pics. The Viridian Optics RFX15 Green DOT Reflex Sight is a high-quality optics accessory designed for shooting sports. With a 3 MOA Green Dot reticle, this red dot sight offers a quick and precise aim for handguns. The sight features a 24mm objective lens, fully multicoated lenses, and a lightweight aluminum construction. It is equipped with a Picatinny rail mount for easy installation and is waterproof, illuminated, and has a long battery life of 30,000+ hours on the medium setting. Perfect for improving accuracy and aiming in shooting activities, the RFX15 is a reliable and versatile accessory for any gun enthusiast.