The Sightmark Triple Duty™ Universal Red Laser Boresight is designed for sighting in .17-.50 caliber rifles, shotguns, and pistols. A key feature of this device is that it doesn't have any additional attachment pieces to be lost. Engineered with a self-centering arbor, the unit attaches to 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) AG3 batteries, and instructions.

Technical data

• Caliber: .17 HMR - .50

• Laser Wavelength: 632 - 650 nm

• LED Type: Red laser

• Power: <5 mW

• Battery: 3 x AG3 3-5 V

• Battery Life: approx. 3 h

• Sighting Range: 13-90 m (15-100 yds)

• Dot Size: 2"@91m (2"@100 yds)

• Lightweight aluminum housing

• Durable and reliable

• Convenient, accurate, and easy to use

• Includes: 3 batteries

• Blister packaging