Meco .303 Laser Boresighter Tatical 303 BR 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: Brass Laser Type: Red Laser Laser Wavelength: 635~655mm Max Output Power: <5mW Power 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 .303 BR - 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 it's 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 Sighter 1 x User Manual More Details: