The Bullet Laser Bore Sighting System 270 WSM is a precision machined brass tool designed to save you time and provide accuracy when sighting in your optic. as well as caliber specific factory alignment. The caliber specific casing is factory aligned and houses a high output laser that is powered by three Alkaline batteries. Batteries are included. Precision machined brass casing for optimum accuracy Caliber specific Factory aligned Units include three (3) batteries High output laser
