The Viridian® RFX 3 MOA Green Dot Reflex Sight is an entry-level red dot sight designed from the ground up for improved performance, rapid target acquisition, and intuitive control in any shooting application. Featuring a streamlined, thermomolded polymer housing, this ultra-compact and lightweight red dot sight is specifically engineered to mount on Walther PDP and WMP handguns. The highly visible illuminated Viridian red 3 MOA dot reticle is easy to see in a variety of lighting conditions, while unlimited eye relief and the ambient light sensors with automatic brightness settings offer consistent performance and intuitive control in virtually any shooting application. Better yet, this red dot sight comes equipped with INSTANT-ON® and auto shut-off features for hands-free activation/deactivation and superior battery conservation, delivering up to 30,000 hours of consistent operation. Compatible with optics-ready Walther PDP and WMP pistols. IPX4 waterproof. Lifetime warranty.