Crimson Trace LG-306 Lasergrips S&W K/L-Frame Round Butt Laser Sight - Red - The LG-306 Lasergrips laser sight for Smith & Wesson K/L-Frame (round butt) revolvers features a comfortable rubber overmold on the Lasergrips that is slimmed down for concealed carry ease. The laser activation switch is located in the front of the revolver, making activation instinctive when you assume a normal firing grip on the revolver. Beam Intensity: 5mW Peak, 633nm, Class 3R Red Laser Fully Adjustable For Windage And Elevation Slimmer Version For Concealed Carry Ease Black Rubber Overmold Grip Replacement Dot Size: Approximately 0.5in At 50ft Front Instinctive Activation Button