The LG-389 LaserGrips bring a laser sight with instinctive activation to the reliable line of Ruger centerfire pistols made in response to direct solicitation from the U.S. Government. - Platform Lasergrips® - Material Polymer and Rubber Combination - Attachment Grip Replacement - Activation Location Dual Side Activation - Sighting Factory Sighted at 50' - Master On/Off Switch Yes - Battery Type Two #2032 Batteries - Laser Battery Life Over Four Hours - Laser Output 5mW Red Laser - Activation Mode Pressure Activated - Laser Visibility Approx .5 Inch Diameter at 50 Feet - Wrench Size 0.028 - User Adjustable Windage and Elevation - Finish Rubber Overmold Grip - Installation User Installed - Warranty Three Year Full Warranty - Color Black - Dot Size Approx. 0.50 at 50'
