Sightmark Sightmark Triple Duty Universal Boresight, Black, Includes 2X LR44 Batteries

Tested and recommended by the National Tactical Officers Association and the North American Hunting Club, the Triple Duty Universal Red Laser Boresight is designed for sighting in .17-.50 caliber rifles, shotguns and pistols. A key feature to this device is it doesn't have any additional attachment pieces to be lost. Engineered with a self-centering 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 of the barrel, and it will attach magnetically. Includes a carrying case, three (3) AG13 batteries, and instructions. • Works on all rifles and pistols • More accurate than arbor type bore sights • Precision accuracy • Reliable and durable • Fastest gun zeroing and sighting system • Reduce wasted cartridges and shells • Compact and lightweight • Easy to pack and travel • Comes with a carrying case • Covered by the Sightmark Limited Lifetime Warranty