The LG-405 laser sight is the latest design in Lasergrips for the wildly popular Smith & Wesson J-Frame revolver line. Featuring a front activated laser that is engaged instinctively when the revolver is held in a natural shooting grip, the LG-405 laser sight is manufactured with a rubber overmold material over a polymer base. In addition to the enhanced sighting provided by Crimson Trace Lasergrips, the LG-405 also features an innovative air pocket on top of the backstrap that effectively reduces felt recoil up to 30%. The LG-405 on a J-Frame is ideal for deep concealment. Lasergrips fir Smith & Wesson Airlight, Airwieght, Bodyguard (Except Polymer-Framed Models) Chief's Special, Centennial, Ladysmith, Models 36,37,38,49,60,63,317,331,332,337,340,342,351,260,442,637,638,640,642,649,651 and 940. Round Butt Only.