The LG-443G Laserguard(R) laser sight fits GLOCKs(R) slimline G42" G43" G43X and G48 by securing firmly around the trigger guard. The Laserguard(R) features Instinctive Activation(TM), which allows the user to activate the laser sight by simply gripping the pistol in a normal firing grip. User-installed in moments, the LG-443G is also fully user-adjustable for windage and elevation and offers more than two hours of battery life.Features :Front activationGreen laserFactory sighted at 50Ft.5 inch diameter at 50 feet