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: Four #2016 Lithium Batteries – Laser Battery Life: Over Two Hours – Laser Output: 5mW Green 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 – Installation: User Installed – Warranty: Three Year Full Warranty – Color: Black – Dot Size: Approx. 0.50 at 50′ – LG-350G Green Lasergrips® are an enhanced green laser sighting option for Smith & Wesson J-Frame (Round Butt) Revolvers. Featuring a ergonomic Recoil Reduction Grip design the LG-350G offers excellent comfort for shooters. This model features a front laser activation button and boasts 2 hours of battery life from (4) 2016 Lithium batteries. User-installed in moments by replacing factory grips the unit is completely user-adjustable for windage and elevation.