Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Red Laser Sight. Crimson Trace 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 red laser grip 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 Crimson Trace LG-350 S&W Lasergrip is completely user-adjustable for windage and elevation. Specifications for Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Red Laser Sight: Manufacturer: Crimson Trace Color: Black Beam Color: Red Laser Output: 5 mW Wavelength: 532 nm Maximum Range: 50 ft Battery Type: CR2032 Battery Life: 4 hours Reticle: Dot Water Resistance Level: Water Resistant Gun Make: Smith & Wesson Gun Model: Smith & Wesson J-Frame Revolver Length: 3 in Width: 1 in Height: 1 in Weight: 4 oz Fabric/Material: Polymer/Rubber Combination Condition: New Adjustability: Adjustable Package Contents: Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Red Laser Sight J-Frame Round Butt What firearm models does the manufacturer say Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Red Laser Sight is compatible with? The manufacturer suggests that Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Red Laser Sight is compatible with Smith & Wesson J-Frame RevolverCrimson Trace LG-350: Smith and Wesson J-Frame Revolver Round Butt Lasergrip Red Laser Sight