Crimson Trace 0169401 Laserguard Pro Compatible w/Glock Full & Compact, Red Laser/White LightLaserguard Pro compatible with Glock Full Size and Compact pistols is a powerful red laser sight and 150 Lumen LED white light in a single compact unit. This illumination and targeting product is activated with Crimson Trace's famed Instinctive Activation, which activates the unit via a front activation button when the pistol is held in a normal firing grip. The LL 807 features four modes of operation (see below), a Master On Off Switch, is completely