Platform: Lasergrips® – Material: Polymer and Rubber Combination – Attachment: Grip Replacement- Activation Location: Front Activation – Sighting: Factory Sighted at 50′ – Master On/Off Switch: Yes – Free Batteries For Life: Yes – Battery Type: Two #2032 Lithium 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: Polymer Grip Panels with Rubber Overmold Activation Pads – Warranty: Three Year Full Warranty – Color: Black – Dot Size: Approx. 0.50 at 50′ – LG-350 Lasergrips® are an enhanced laser sighting option for Smith & Wesson J-Frame (Round Butt) Revolvers. Featuring a ergonomic Recoil Reduction Grip design the LG-350 offers excellent comfort for shooters. This model features a front laser activation button and boasts over 4 hours of battery life from (2) 2032 Lithium batteries. User-installed in moments by replacing factory grips the unit is completely user-adjustable for windage and elevation.