The Crimson Trace LG-639 Lasergrips offer a sleek and functional enhancement for Glock Compact firearms specifically tailored for Gen 3 4 and 5 models excluding the 19X. Designed with a black finish these laser grips feature a red laser with a power of 5mW and a wavelength of 633nM making them highly visible up to 50 feet. The innovative Instinctive Activation allows for seamless operation engaging the laser with a natural firing grip. Users can easily install the grip attachment on the gun frame and it comes with the convenience of a Master On/Off switch for complete power control. With precise windage and elevation adjustments the laser ensures accuracy while the compact design includes two CR2032 batteries offering four hours of continuous operation.