CVLIFE Professional Laser Bore Sight Kit with 32 Adapters fit 0.17 to 12GA Calibers Bright Green Laser Bore Sighter with Button Switch Powerful Support for Hunting

Specifications of Bore Sighter: Material: Aluminum Laser class: IIIA Laser wavelength: 510 - 540 nm/630 - 650 nm Max. Output Power: ＜5mW Length: 6.3inch Head diameter: 0.62inch Tail diameter: 0.2inch Overall Package weight: 415g How to use it? A. Assemble the battery into the bore sight. B. Select the proper adapter that fits in the barrel of your firearm. C. Assemble the adapter on the small end of the laser bore sight then screw the adapter tight to maker bore sight is inserted in until it is sung with the crown of your firearm. D. When you press the switch button a bunch of strong laser beam will be emitted. Package Includes: 1 x Laser Boresighter 32 X Caliber Adapters 1 X Arbor 1 x Screwdriver 1 x Allen Wrench 1 x Spare Screws 2 x CR2 800mAh Batteries 1 x Instruction Manual 1 x Storage Case