• Green bore sight class IIIA less than 5 mW and a wave length of 510-520 nm of green laser
• Laser bore sight fits for 5.56 223 chamber, caliber specific easy to sit perfectly in the bore
• The 223 green laser bore sight comes with 3 set of batteries, total of 9 upgraded batteries with each set of battery can last up to 35 minutes
• The fastest green dot laser zeroing and sighting system and save you time. Reduce wasted cartridges and shells
• Robust and reliable brass construction makes the laser boresighter built to last. Clear and bright green laser, which can provide longer distance sighting than red laser bore sight