Red Laser Bore Sight 12 Gauge Barrel Cartridge Boresighter for 12ga Shotguns and 3 MOA ---Brightness Control:

and 3 MOA ---Brightness Control: Red : 5 levels / Green : 5 levels ---Power: 1 x CR2032 (included) Specifications (Red Laser Sight) ---Dimensions: 3" (Length) x 1" (width) ---Height: 1

But sometimes

20 oz ---Material: Aluminum

Red laser: 3 x AG13 (included)

Angle Indicator & Bubble Level for 1" or 30mm Rifle Scope Tube

Red Laser Bore Sight 12 Gauge Barrel Cartridge Boresighter for 12ga Shotguns and 3 MOA ---Brightness Control:Red Laser Bore Sight 12 Gauge Barrel Cartridge Boresighter for 12ga Shotguns ITEM DESCRIPTION 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 precise reference for zeroing in your sights or scopes.