BUSHNELL Laser Boresighter Laser Collimator cal.22-.50 Caliber #7740100C

This laser collimator is a precision instrument made with the finest materials and assembled by highly skilled craftsmen to ensure trouble-free use for a lifetime.

It is ideal for helping you set your sight on paper before firing the first shot. A collimator will save you money by allowing you to shoot fewer rounds while zeroing your scope at the range.

Features:

-Includes 7 expandable rods covering caliber diameters from .22 to .50, as well as a larger adapter designed for 20 and 12 gauge hunting rifles.
-Operates on 3 LR44 batteries, included.