The BSA Boresighter Kit is a comprehensive bore sighting system designed to help shooters achieve rough zero before heading to the range.
- Type: Mechanical bore sighting kit
- Caliber Range: .22 to .50 caliber (via expandable arbors)
- Attachment: Magnetic mount for scope objective lens
- Includes: Boresighter unit, multiple brass arbors, grid target
- Use: Preliminary scope alignment before live fire zeroing









