Red or Green Dot Laser Bore Sight Kit for .177 to .68 Caliber Pistols Rifles Scopes, Multiple Caliber Adapters Laser Boresighter for Hunting or Shooting

Upgraded Battery Compartment: after upgraded, the independent battery compartment uses an alkaline battery for longer service time.
Upgraded Power Switch: The push power switch design makes your operating more convenient, saves electric energy and delays battery life.
Multi Caliber Adapters : The boresighter kit is equipped with up to 12 calibre adapters, which are suitable for guns of various calibres from 0.22 to 0.68.
High Precision: The sight is a calibration method installed in the barrel to simulate the bullet path. It projects the laser beam from the center of the aiming axis and provides accurate zero reference in the optical or iron sight, saving your time and money.
Suitable for Various Gun Types : The red dot laser bore sight can calibrate most common rifles, pistols and shotguns to improve your aiming and shooting level without firing a bullet.
Safe and Reliable: The visible distance of the red laser is up to 100 yards. Laser output power less than 5mW(IIIA class laser).