Viridian's E Series Laser Sight is specifically designed for the everyday conceal and carry owner. This model-specific, trigger guard-mounted Optic offers the most powerful red laser legally available, delivering rapid target acquisition when you need it most. Bright red laser, 635-650nm wavelength, the brightest allowed by law 25-yard range in broad daylight/1 mile at night High-strength thermo-molded polymer construction Mounts to the trigger guard of your pistol Ambidextrous on/off with auto shut-off Easy windage and elevation adjustments 6+ hours of battery life Order today!