ARKSight Hunting BoreSighter for 223/9MM/243/308/7mm-08REM Cal, Red Dot Brass Chamber Bore Sight Kit for Rifle Scopes and Handgun

HOW TO ZERO YOUR SCOPE: 1. Unload the bullets of your firearm. 2. Choose the proper boresighter and install the 3 batteries to turn on the laser beam, make sure the batteries direction is correct. 3...