The Laser Bore Sighter comes with 6 x adaptors to fit any .17 to .50 calibre firearm. Also included are shotgun gauges 12, 16 and 20G.
This unit installs in the barrel of the firearm and projects a laser beam from the centre of the axis in the bore. This allows the accurate bore alignment of scopes, iron sights and laser sights on handguns or rifles.