Operation:<br> 1.Attach the sight to your equipment.<br> 2.Twist the two small screws located at the head of the sight with a small Allen wrench to adjust the elevation and <br>windage. Turn the screws until the main laser spot<br> 3.Overlaps with the scattered points.<br> 4.Press the button or switch to turn on the laser.<br> 5.Open the back cover to replace the battery.<br><br> Specifications:<br> Power Requirement: 1 x 3V CR123A battery<br> Laser Class: Class IIIA<br> Output Power: < 5mw<br> Wave Length:532nm<br> Weight:410g<br> Height:38mm<br> Length:155mm<br> Width:130mm<br> Tube Diameter:6mm<br> <br> Package Includes:<br> 1x Laser Sight Scope with Switches<br> 2x Metal Mounts<br> 1x Hex Wrench<br> 1x Storage Box<br><br><b> Tips:</b><br> Do not look directly at the laser.<br> Do not point the laser at people.<br> Do not point the laser at reflective surfaces.<br> Do not look at the laser using instruments such as binoculars or microscopes.<br> Children should not use the laser unless under the close supervision of an adult.<br>