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. Fits 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.