Sightmark Universal Triple Duty Green Laser Boresight - SM39026

Field tested and approved by the North American Hunting Club, the Triple Duty universal green laser boresight is designed for sighting in .17 to .50 caliber rifles, shotguns and pistols. A key feature of the device is it doesn't have any additional attachment pieces to be lost. Engineered with a self-cantering arbor, the unit attaches into the end of the barrel as opposed to the inside, preventing metal from protruding into the Firearm barrel. Simply place the base of the bore sight onto the end