<b> HOW TO ZERO YOUR SCOPE:</b> <br> 1. Unload the bullets of your firearm.<br> 2. Choose the proper boresighter and install the batteries to turn on the laser beam, make sure the batteries direction is correct.<br> 3. Install the boresighter into the firearm.<br> 4. Aim the laser beam at a target and adjust the scope to line up with the laser dot. DO NOT FIRE YOUR FIREARM.<br> 5. Unload the Laser Boresighter.<br> 6. Take your firearm out to the range and test fire. Fine tune if needed.<br> <br> <b>Warning:</b> <br> <b>Keep boresight laser beam away from eyes.</b> <br> <b>Before boresighting your scope, make sure that the firearm is unloaded and the muzzle is pointed in a safe direction.</b> <br> <b>After the firearms is boresighted, make sure to remove the boresighter from the firearm.</b> <br> <br> <b>Specifications:</b> <br> Material: Brass.<br> Weight: 7.8oz<br> Length: 6.57"<br> Laser wavelength: 635-655nm.<br> Max. Output Power: ≤ 4.9mW.<br> Laser class: IIIa.<br> Laser Color: Red.<br> Batteries type: AG3/LR41 button cell batteries or equivalent, non rechargeable.<br> <br> <b>Packing List:</b> <br> 7 x Laser boresighters <br> 2 x 10 pieces battery pack <br> 1 x Instructions <br> 1 x Padded storage box <br>