Crimson Trace LG-637 Lasergrips with Red Laser, Heavy Duty Construction and Instinctive Activation for GLOCK Full-Size Pistols, Defensive Shooting and Competition

BRIGHTNESS: Features a 5mW peak, 620-670nm, Class 3R visible red laser that is in conformance with and complies with 21 CFR 1040.10 with a max power output of 5mW for a Class 3R Red Laser - the brightest beam allowed by law RUNTIME: 4 hours of battery life that runs on (2) 2032 batteries (included) EASE OF USE: Rear activation button engages the laser immediately when the firearm is held in a normal firing grip - this model features a master ON/OFF switch for completely powering down the unit - user installed - no gunsmithing required RELIABLE: Factory sighted at 50 feet, but is fully user adjustable for Windage and Elevation with provided tool FITS: Glock GEN3 17, 17L, 22, 24, 31, 34, 35, 37. GEN4 17, 22, 31, 34, 35, 37. GEN5 17 GUARANTEED: This product is covered by the Crimson Trace Protect Limited Lifetime Warranty. For questions or concerns regarding warranty, please visit the Crimson Trace website.