Laser Max is now producing an internal laser sight for Glock long slide semi-auto pistols, including 9mm Glock 34 and Glock 17L and .40-caliber Glock 35 and Glock 24 models. The sight weighs less than a quarter ounce, and because it has no external parts, users are not forced to modify or change their grips or holsters to accommodate the sight.