Crimson Trace LG-489 Laserguards with Heavy Duty Construction and Instinctive Activation for Smith & Wesson M&P Shield 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 (1) 1/3N battery (included) EASE OF USE: Front activation button engages the laser immediately when the firearm is held in a normal firing grip - user installed - no gunsmithing required RELIABLE: Factory sighted at 50 feet, but is fully user adjustable for Windage and Elevation with provided tool FITS: Smith & Wesson M&P Shield and M&P Shield M2.0 9MM and .40 S&W (Does NOT fit models with integrated laser, Shield EZ, or Shield Plus)