Viridian Weapon Technologies' E-Series line is built for everyday concealed carry and is custom designed specifically for the top brands and handguns on the market. E-Series Green Laser Sights easily mount to the trigger guard and feature ambidextrous activation with a 5-minute auto shut-off. Featuring 100 yards of daylight range, over 2 miles at night, and up to 90 minutes of battery life, this green laser sight is the perfect companion.