The Wheeler Engineering Professional Laser Bore Sight is constructed of a machined aluminum body with soft rubber over-molding which houses the laser module. It's high-power laser is visible during daylight conditions, and a high strength magnetic connection ensures a solid fit to the barrel of nearly all rifles, muzzleloaders, shotguns and handguns. A magnetic connection to the end of a firearm's muzzle provides more precise alignment with the bore while eliminating the risk of damage, which may occur with arbor style bore devices.