Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Green Laser Sight. The Crimson Trace Lasergrip Smith & Wesson Green Laser Sight features a front activated laser that is engaged instinctively when the revolver is held in a natural shooting grip. The battery life is over four hours with a laser output of 5mW. With super installation there is no need to worry about a huge user manual or a lot of tools. The Crimson Trace S&W Laser Sight is manufactured with a rubber overmold material over a polymer base and is among the most popular Crimson Trace Lasergrips applications. Specifications for Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Green Laser Sight: Manufacturer: Crimson Trace Color: Black Beam Color: Green Laser Output: 5 mW Wavelength: 532 nm Maximum Range: 50 ft 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 Included Accessories: Crimson Trace S&W J-Frame Round butt- Lasergrips Green laser Black LG-305G Condition: New Adjustability: Adjustable Features of Crimson Trace Lasergrips S&W J-Frame Green Laser Sight: Polymer and Rubber Combination Material Front Activation On/Off Master Switch Uses Two #2032 Batteries Pressure Activated Rubber Overmold Grip Free Batteries for Life Three year Full Warranty Package Contents: Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Green Laser Sight J-Frame Round Butt What firearm models does the manufacturer say Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Green Laser Sight is compatible with? The manufacturer suggests that Crimson Trace Smith and Wesson J-Frame Revolver Round Butt Lasergrip Green Laser Sight is compatible with Smith & Wesson J-Frame RevolverCrimson Trace LG-305G: Smith and Wesson J-Frame Revolver Round Butt Lasergrip Green Laser Sight