Sightmark Triple Duty Universal Green Laser Boresight 12ga Accommodates drink containers up to

Accommodates drink containers up to 3-7/8" in diameter

Manufacturer Part No : 1822

Tilt Control: A tension knob allows for tilt control up to 45 degrees

Manufacturer Part No : APT-GPS-01

Screw Size #10

Sightmark Triple Duty Universal Green Laser Boresight 12ga Accommodates drink containers up toField tested and approved by the North American Hunting Club, the Sightmark Triple Duty Universal Green Laser Boresight is designed for sighting in . 17 . 50 caliber rifles, shotguns, and pistols. A key feature of the device is that 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