Designed for use with the compact Glock 19 (Gen4) pistol, the LaserMax LMS-G4-19G Guide Rod Laser Sight helps shooters achieve fast and precise target acquisition. This guide rod laser sight replaces the Glock's factory spring guide assembly with a high intensity green laser sighting system. Pulsed for maximum visibility, this guide rod laser features an easy to use on/off switch to ensure safe firearm handling. Compared to other laser sights, the LMS-G4-19G Guide Rod Laser Sight from LaserMax sets the bar high when it comes to ruggedness. Tested to meet NIJ and MIL-SPEC body armor and military specifications, this laser sight can take a beating. During rigorous tests, it was frozen in ice, roasted in flames, crushed with heavy machinery, submerged in water to 66 feet, shot to 20,000 rounds and dropped from five-story heights. Perfect for training exercises, concealed carry and home defense, the LaserMax LMS-G4-19G Guide Rod Laser Sight helps to ensure shot accuracy in low-light scenarios. 
Pulse Beam 
The LaserMax LMS-G4-19G Guide Rod Laser Sight helps you to identify your target quickly. This laser sight pulses for superior visibility and speedy acquisition. 
Rugged Design 
Made of aircraft-grade aluminum and featuring genuine Wolff springs, the LaserMax LMS-G4-19G Guide Rod Laser Sight is built tough. It blends seamlessly into the handgun's frame to ensure a smooth, snag-free draw. 
Ambidextrous On/Off Switch 
Whether you're a right or left handed shooter, the LaserMax LMS-G4-19G Guide Rod Laser Sight is easy to use. Its integrated ambidextrous on/off switch puts the power of pinpoint laser precision at your fingertips.