MidTen .243 308 Laser Bore Sight Red Dot Boresighters with Three Batteries

Laser Bore Sight Overview Class IIIA laser, less than 5mW Made to fit the .243 308 chamber, caliber specific. Comes with 1 set batteries (3 AG3 batteries) which can last one and half an hour Easy to sit perfectly in the bore. Sturdy brass construction. Fast gun zeroing and sighting. High accuracy to reduce cartridges and shells wasted, sighting range of the bore sight is 15 to 100 yards. .243/308 Boresighter Description .243 308 Red Laser Bore Sight Features Excellent Design The bore sight red laser fits almost .243/308 chambers. Easy to sit perfectly in the bore. Solid brass material. Not easy to damage, resistant to friction. Suitable Specification Laser Wave length (nm): 640 to 660 Temperature: -10℃ to 40℃ Batteries: included 3 X AG3/LR41 How to use the bore sight? Unscrew the back cap from the bore sight by turning counter clockwise. Stand the bore sight on a flat surface with the laser side pointing down. Insert batteries (+ side up) inside the rear opening.