Crimson Trace LG305 Lasergrips for Smith & Wesson J Frame, the perfect concealed firearm has arrived. This Lasergrip from Crimson Trace will expand the practical applications of your small frame revolver. As the pistol is drawn from the holster, the sensory activator on this Crimson Trace Laser Grip Pistol Sight is engaged, immediately pinpointing muzzle direction. With practice, speed and accurate shot placement can improve significantly. With only a screwdriver and a few minutes of time, your revolver becomes a 21st century self defense package. Even under the best of conditions, the fixed sights of the J-frame gun can be difficult to see. Using Crimson Trace LG305 Lasergrips for Smith & Wesson J Frame enhanced visibility optics, an un-complicated single index plane is created by placing a brilliant red dot laser at the point of impact. Crimson Trace LG305 Lasergrips for Smith & Wesson J Frame fits Smith & Wesson J frame (smallframe) revolvers, Round butt, including Airlight, Airweight, Bodyguard,Chiefs Special, Centennial, Ladysmith, models 36, 37, 38, 49, 60, 63,317, 331, 332, 337, 340, 342, 360, 442, 637, 638, 640, 642, 649, 651and 940.