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The .22cal to .50 cal Green Boresighter is designed for sighting in your rifles and pistols without firing a shot. It will help you when hunting due to its accuracy.
This BORE SIGTER is light-weight designed, and easy to use. It comes with 5pcs bore adapters to fit 0.22 to 0.50 caliber pistols, rifles, handguns, and scopes.
This bore sight collimator installs in the barrel of the firearm and projects a green beam from the center of the bore axis, providing a precise reference for zeroing in on your target. Simply choose the caliber adapter and place the unit in the muzzle. Long sighting range; Light weight and durable. Allows for quick and accurate resetting of any sights
Max. Output Power less than 1mW; Weight 38g; Material Aluminum; Length 155 mm; Length of rod that fits in the barrel: 60mm - 90mm (tapered). Head Diameter: 16mm; Tail Diameter: 5mm; Wavelength 630-680nm; Color Green; Power 1 x CR2 Battery
NOTE: Due to different guns' specific, you might need to do fine adjustment. Green boresighter comes with 1pc CR2 battery. CAUTION: Avoid direct eye exposure to beam