This laser boresighter is designed for sighting your rifles and shotguns without firing a single shot. When boresighting with the naked eye just won't do, this safe, easy to use tool will get it done. Simply choose the caliber adapter and place the laser unit in the muzzle. The sight will emit a straight red laser beam with a long sighting range, providing a precise reference for zeroing in on with your sights or scopes. Unlike most in-muzzle boresighters this unit protrudes obviously from the firearm to prevent an accident. It fits 0.22 to 0.50 caliber rifles, handguns, and scopes and allows for quick and accurate resetting of any sight type (iron, optical, laser, holographic, etc.). For ultimate accuracy, the boresighter is windage and elevation adjustable. It's also lightweight and durable and comes with four adapters, 3 batteries, and tools so that you'll have everything you need to boresight all your weapons.

Max. Output Power: less than 5mW Class II Laster
Weight: 1.34oz/38g
Material: T6061 High Class Aluminum Alloy
Length: 6.1"/155mm
Length of rod that fits in the barrel: 2.36"- 3.54"/60mm - 90mm (tapered)
Head diameter: 16mm
Tail diameter: 5mm
Laser wave length: 630-680nm
Power: 3x AG13 batteries (Included.)
For any 0.22 to 0.50 (5.59-17.2cm) handguns, rifles, sights and riflescopes

1 x Laser bore-sighter
1 x Screwdriver
1 x Spare screw
1 x Allen wrench
4 x Adapter tips
1 x Padded storage box
3 x AG13 batteries