Don't underestimate the efficiency of a powerful laser sight. With a sight distance of 50 feet, the Crimson Trace LG-443G Laserguard aims true to give you a clear target out in the field. To fit the Laserguard to your gun, simply secure it firmly around the trigger guard. The Laserguard installs in just moments. From 50 feet away, the green dot is just a half-inch in diameter, and the aim is user-adjustable for windage and elevation. The lithium battery (included) will last more than two hours. Last but not least, the Laserguard allows users to activate the laser simply by gripping the pistol in a normal firing grip.