LG-305 laser sights for the S&W J-Frame revolver line feature an extended grip length over the LG-405. Featuring a front activated laser that is engaged instinctively when the revolver is held in a natural shooting grip, the LG-305 is manufactured with a rubber overmold material over a polymer base. Features front activation; instinstive activation; grip placement. Fits S&W J Frame Airlight, Airweight, Bodyguard (except polymer-framed models), Chiefs Special, Centennial, Ladysmith. Models 36/37/38/49/60/63/317/331/332/337/340/342/351/360/442/637/638/640/642/649/651/940. Round butt only.