Crimson Trace Lg-469 Laserguard Red Laser Sight for Springfield Armory XD-S Pistols with Holster LG-469H Laserguard for Springfield Armory XD-S with Holster Powerful red laser: features a 5Mw peak, 620-670nm, class 3R visible red laser - the brightest beam allowed by law Instinctive activation: front activation button engages the laser immediately when the firearm is held in a normal firing grip. This is the feature that sets Crimson Trace apart from the rest Over four hours of battery life: powered by one 1/3N battery (included). this product is eligible for Crimson Trace's free batteries for life program Bundle fits: bundle includes laser sight and holster for the springfield armory xd-s Easy installation: user installed- no gunsmithing required. Factory sighted at 50 feet, but is fully user adjustable for windage and elevation with provided tool