Crimson Lasergrips for Smith & Wesson L and N Frame Square/Round Butt are a slimline design with an open backstrap and a deep relief for speedloader use. The result is a full, comfortable firing grip that is perfect for concealed carry. These features combine to create the ultimate self-defense accessory and the most comfortable grip on the market. High performance standards of laser sighting are now available to owners of the larger L and N frame Smith and Wesson revolvers. Lasergrips bridge the gap between self defense and sporting purposes, your Lasergrip equipped revolver is just as much at home in the bedroom as it is on the trail. These Crimson Lasergrips fit models 10 thru 29, 48, 53, 56,57, 58, 64, 65, 66, 67, 242, 296, 386, 396, 520, 547, 586, 610, 617,624, 625, 627, 629, 648, 657, 686 and 696.