Laser Pro Compact Green Pistol Laser Sight LASER PRO Green Laser Sight Beam - Green Lasers are visible in the day time. Class 3R 635nm &lt;5mW Ambidextrous on off switches - on/off switch for right and left handed shooters. FITS compact pistols and guns with rails that have a distance of 1.25" between the center of the cross notch in the rail to the front of the trigger guard. 3 x CR-1/3N batteries included + 1 Year manufacturer's warranty handled by Lasersightpro when purchased through Cyber Marketing, LLC Green Laser is Adjustable for windage and elevation with included allen wrench.