Caliber : .50 - 12 Ga. Inventorytyp : Reg Vendor Group : Bus Product Description Description: Expandable Arbors Just the accessory for the shotgunner or muzzleloader. Fits Professional and Deluxe boresighters. Additional Information: Expandable Arbors .50 Caliber -12 Gauge Fits Bushnell Profession Manufacturer: Bushnell Item#: ACU-74-0012 In Stock $11.99 Quantity Prices for internet orders only. Not all products available in store. Overall Customer Rating:  Rate This Item   |  Write a Review Related Items Boresighter With 15 Studs and Hard Case $52.99 .17 HMR Cartridge Bore Tool $58.99 Mini Laser Bore Sight Red .17-.22 Calibers $47.99 Magnetic Boresighter For All Firearms $36.99 Professional Laser Bore Sighter $153.99 Zero Point Magnetic Illuminated Boresighter $76.99