The Bushnell Universal Laser Boresighter includes arbors for 22 through 50 caliber. It is ideal for helping you to get on paper before taking a first shot. A boresighter will save you money by allowing you to fire fewer shots while zeroing your scope at the range. Boresighter uses 3 LR44 batteries (included).

Includes 4 expandable arbors which cover .22 to .50 caliber diameters as well as a larger adaptor designed for 20 and 12 gauge shotguns

Uses 3 LR44 batteries, included