Laser Cartridge Boresighter for 12 Gauge Shotguns This boresighter is designed for sighting in your shotguns without firing a shot. Simply install the included batteries, place the entire assembly into the chamber, and gently close the action. The sight will emit a straight red laser beam, providing a precise reference for zeroing in your sights or scopes. Features ---Fits 12 Gauge Shotgun chambers ---Lightweight and durable ---Works with any sights (iron, optical, laser, holographic, etc) ---Long sighting range Specifications ---Max. Output Power: less than 2mW ---Weight: 42g ---Material: Aluminum ---Laser wavelength: 635-655nm ---Sighting Range: 10 to 75yds ---Color: Red ---Power: 3x LR44 batteries Items Included ---One (1) Laser 12 Gauge Boresighter ---Six (6) LR44 batteries (3 spares).-Returns: 30 day returns | Seller pays for return shipping | See details- for more information about returns-Payments: -: -: -: -MPNMaximum Magnification:: WLbsR12gg-121x-Mounting LocationModel:: Barrel12G-Objective Lens DiameterReticle Color:: n/aRed-For Gun TypeBrand:: RifleWEST LAKE TACTICAL-ColorReticle Type:: RedTarget Dot-MountingType:: BarrelLaser-UPC: 855011003928-: -: -: -Item location: Meadow Lands, Pennsylvania, United States-Ships to: United States-: