A BSA Bore Sighter Kit with Adjustable Arbors

A BSA Bore Sighter Kit with Adjustable Arbors, presented in a black molded plastic carrying case. The kit contains an array of chrome or nickel-plated metal arbors, meticulously organized into compartments marked with specific caliber sizes including .22, .25, .377, .44, .45, .50, 7MM, 9MM, and 20/12. The central black cylindrical object is the main bore sighter unit, accompanied by a multi-part metal tool with a knurled grip. An instruction sheet, written in English, features prominent safety warnings such as “WARNING: THIS IS A DANGEROUS TOOL. IMPROPER USE CAN RESULT IN INJURY OR DEATH. ALWAYS WEAR EYE PROTECTION,” and “CAUTION: IF THE BORE STUD IS NOT INSERTED CORRECTLY, IT CAN DAMAGE THE BARREL.” This specialized tool kit is designed for firearms or ammunition bore sighting.