Universal bore sight

A bore sight in alignment with a firearm barrel having a bore of predetermined diameter and an end having an annular surface lying in a plane generally perpendicular the centerline of the bore, comprising:

• a housing having a planar surface lying in a first plane and having a magnet at the planar surface to secure the bore sight in engagement with the end of the firearm barrel, the magnet sized to secure the bore sight in engagement with the end of the firearm barrel, the housing defining a centerline perpendicular the planar surface;
• a laser fixedly mounted in the housing and projecting a laser beam along the centerline of the housing, the laser beam being aligned with the centerline of the bore of the firearm barrel when the centerline of the housing is aligned with the centerline of the bore of the firearm barrel;
• and
• the bore sight positioned by hand with the planar surface of the housing in contact with the annular surface at the end of the firearm barrel, aligning the bore sight with the centerline of the bore of the firearm barrel, no portion of the bore sight insertable within or through the firearm barrel, the planar surface having concentric circles and a crosshair.