Universal Laser Boresighter

Compact, self-contained boresighting system projects a bright red laser beam aligned with the bore axis for sighting scopes, holographic red dot sights, and "iron" sights to the point-of-aim without firing a shot. A powerful magnet holds the sighter securely on the muzzle of any rifle, pistol, or shotgun; nothing to insert into bore or chamber. Install the three batteries (included) into the battery compartment, use the centering guides on the rear of the boresighter to center it on the muzzle,