LG-105 laser sights for the wildly popular Smith & Wesson J-Frame revolver line feature a hard polymer surface that is rugged and well suited for personal defense. The smooth feel of the polymer provides for a prompt, snag-free draw. LG-105 Lasergrips includes the durability, sighting adjustments, and the defensive advantage that Crimson Trace is famous for. Product Type: Lasergrips Material: Polymer Attachment: Grip Attachment Activation Location: Front Activation Sighting: Factory Sighted at 50' Battery Type: Two #2032 Lithium Batteries Laser Battery Life: Over Four Hours Laser Output: 5mW Red Laser Activation Mode: Pressure Activated Master On/Off Switch: Yes Laser Visibility: Approx .5 Inch Diameter at 50 Feet User Adjustable: Windage and Elevation Installation: User Installed Warranty: Three Year Full Warranty Color: Black Water Resistant: Yes