BSA Bore Sighter Kit with Arbors -The BSA Bore Sighter Kit with Arbors will help you sight in a new rifle and scope combination while keeping your rifle's zero to help you hit your targets. The kit comes with 15 arbors of varying calibers all packaged in a heavy-duty case. Comes with .177, .22, 6mm, .25, 6.5mm, .27, 7mm, .30, .32, .338, .35, .375, .44, .45, and .50 caliber arborsArbors packaged in a heavy-duty caseMatte finish