LG-105 laser sights for the wildly popular Smith & Wesson J-Frame revolver line feature a hard polymer surface that is rugged and well suited for personal defense. The smooth feel of the polymer provides for a prompt, snag-free draw. LG-105 Lasergrips includes the durability, sighting adjustments, and the defensive advantage that Crimson Trace is famous for. Lasergrips fit Smith & Wesson Airlight, Airweight, Bodyguard (Except Polymer-Framed Models) Chief's Special, Centennial, Ladysmith, Models 36,37,38,49,60,63,317,331,332,337,340,342,351,360,442,637,638,640,642,649,651 and 940. Round Butt Only.