Tactical Purple Laser Sight Ultra Low Profile Picatinny Mount Purple Dot Sight for Pistol

►【21MM Width Rail + 0.79inch Installation Space】: There are 2 alternative screw holes on the red beam, choose one for your preference and use the ONLY ONE SCREW to install the sight in a perfect location on your 21MM rail with screw slot. Also the Installation Space from screw slot to trigger guard must be at least 0.79 inch. ►【Adjustable Puplre Laser, Class IIIA, <5mW】: Bright and precision purple laser sight, safe beam intensity/ wavelength: <5mW peak, 405nm, Class IIIA. Highly visible red laser in any environments which can reach up to 50-100 ft. during the day and up to 600-1000 ft. at night. ►【Ultra Lightweight and Compact】: The tactical laser sight fits onto weapon with a Picatinny or Weaver accessory rail. Super sleek and low profile design allows to fit in most holsters which is convenient for concealed carry. ►【Ambidextrous ON/OFF + Strobe Laser Mode】: User Friendly Easy ambidextrous activation for left and right-handed users. ►【Magnetic Rechargeable Built-in Battery】: The purple beams for guns is powered by a built-in magnetic rechargeable battery, A full charging takes about 1.5 hour and provides about 2 hours max running time. ►【Windage & Elevation Adjustment】: For elevation, clockwise moves the laser down; For windage, clockwise moves laser left. In order to better protect the pistol laser light combo, please gently tune elevation and windage interactively. Calibrating in one direction with brute force will damage it.