LL-803 Laserguard Pro for Glock 42 and 43 is a powerful red laser sight and 150 Lumen LED white light in a single compact unit. Designed specifically for the 42 and 43 platform, this illumination and targeting product is activated with Crimson Trace's famed Instinctive Activation?, which activates the unit with a normal firing grip. LL-801 offers four modes of operation: Laser + Light, Laser Only, Light Only, and Laser + Light Strobe. The unit features a Master On/Off Switch, is completely user-installed in moments, is adjustable for windage and elevation and offers 2 hours of battery life. Laser Output: 5mW Red Laser Laser Visibility: Approximately .5" Diameter at 50 Feet Factory Sighted at 50' Three Year Full Warranty Wrench Size: .05