Viridian's E-Series line is specifically designed for everyday concealed carry and is available for the top brands and handguns on the market. The E-Series Green Laser Sights will easily mount to the trigger guard and feature an ambidextrous on/off button with a 5-minute auto shut off just like their Red Sight counterparts.Easy installation onto the trigger guard of your pistolAmbidextrous on/off button with 5 min auto shut offUp to 100 yard range in daylight and 2 miles at nightConstant laser with 60 min battery lifeEasy windage and elevation adjustmentFits the Ruger Security 9 Full-Size and Compact.Features: Series:E SeriesLED Light Color:GreenWeapon Brand:RugerActivation:On/Off OnlyAdjustable:Windage/ElevationBatt. Life (constant):1 HourColor:BlackHolster Included:NoMaterial:High Strength Thermo Molded PolymerLaser Color:GreenMounting:Trigger GuardRange:Up to 25 yards daylight / 1 mile nightStrobing Effect:NoWarranty Length:7 years