LG-639 Lasergrips® are a rear-activated laser sight for GLOCK Compact pistols (Third Generation 19" 23" 25. 32. 38" Gen4 19" 23" 32" and Gen5 19). Featuring Crimson Trace's famed Instinctive Activation™" which allows the laser to be activated with a normal firing grip" the LG-639 includes a Master On/Off Switch for completely powering down the unit. User-installed in moments by attaching securely to the gun frame" this laser sight is fully adjustable for windage and elevation. Provides 4 hours of run time with (2) included 2032 Lithium Batteries.

Features:
Pressure activation
Red laser
Factory sighted at 50Ft
.5 inch diameter at 50 feet