8mm x 57 JRS Laser Boresighter 8X57JRS Red Dot Sight Brass Cartridge Bore Sighter

Caution Avoid direct eye exposure to the laser beam Laser radiation is emitted from the aperture Specification Housing Material BrassLaser Type Red LaserLaser Wavelength 635 655mmMax Output Power 5mWPower Supply 3Pcs LR41 Batteries NOT Included Battery Installation Positive side facing outwards Look at your button cell battery you will see on the flat side commonly which means positive And the other slightly rounded side is the negative side Features The laser bore sighter cartridge fits 8mm x 57 JRS Great for the range and ensuring your tactical equipment is still zeroed in after travel It projects a straight laser beam allowing precise optical adjustments to sight in your scopes or sights How to Use Battery Installation Simply twist the end cap counterclockwise to open the battery housing insert batteries and all anode facing outwards Be certain that the batteries are all facing in proper direction Turn On Insert batteries then turn the end cap clockwise until its slightly snug At this point you should see the red laser dot Turn Off No off switch you need to open the end cap and take the batteries out About Storgae If you plan to store the boresighter for a long period of time without use remove the batteries to preserve power place the sighter in a cool dry place Package Included 1 x Laser Bore Sighter1 x User Manual More Details