Viridian E-Series Red Laser Sight. The Viridians E-Series Red Laser Sight was created for everyday conceal and carry owners. The model specific, trigger guard mounted. Laser sight offers the most powerful red laser legally available, delivering rapid target acquisition when you need it most. The E-Series is available in a variety of gun models. Viridian E-Series Red Laser Sight Features. Easy installation onto the trigger guard of your pistol. Ambidextrous on and off button with 5 min auto shut off. 25 yard range in daylight and 1 mile at night. Constant laser with 6 + hours battery life. Easy windage and elevation adjustment. On and Off Only. High Strength Thermo Molded Polymer. Up to 25 yards daylight and 1 mile night.