Why Laser Max? Laser Max Products have grown to become a global leader in hardened and miniaturized laser systems, offering a comprehensive line of premium laser sights for home defense, personal protection and training use. The company?s Commercial business provides laser sighting solutions and tactical lights to the firearm OEM and retail channels. Laser Max has developed significant intellectual property in laser technology, resulting in a comprehensive IP portfolio. Laser Max?s commercial business was recently acquired by Crossman Corporation which was founded in 1923. Crossman has been driven by the steadfast pursuit of quality and innovation. Crossman?s history is rooted in the air gun industry, where today Crossman remains the market leader in air guns, air gun ammunition, and consumables. In addition to air guns, Crossman has a diversified product lineup in the outdoor sporting goods industry that includes airsoft as well as firearms optics and archery products under the CenterPoint brand. Crossman is a subsidiary of Compass Diversified Holdings Inc. Designed specifically for use in Glock 19, 23, 32, and 38 pistols, the LMS-1131G replaces Glock's factory spring guide assembly with a high intensity green laser sighting system for advanced target acquisition. Easily user installed without the need for gun smithing or special tools, the Guide Rod Laser is constructed with rugged, precision components including aircraft-grade aluminum and genuine Wolff springs. Additional Features: Pulses for superior visibility and faster identification Internal design does not restrict grip or holster selection Distinct ambidextrous ON/OFF switch reinforces safe firearm handling Proximity to the bore provides maximum POA/POI accuracy Guaranteed alignment ensures center of mass shots Also available in red and infrared.