The Crimson Trace LG-637G Green Lasergrips are designed for full-size Glock Gen 3 to 5 models offering precision and ease of use. The distinctive green laser is activated instinctively with a natural firing grip ensuring seamless operation without disrupting your focus. This model is equipped with a Master On/Off Switch for full control while its grip attachment makes installation straightforward and secure. With the ability to adjust for windage and elevation these Lasergrips promise accuracy at a range of up to 50 feet. Crafted with a durable rubber overmold finish they offer both comfort and reliability. Powered by four CR2016 batteries the laser provides two hours of continuous run time making it a dependable choice for any shooting scenario.