Sick of wasting time and ammo sighting in your rifle or rifles? Here is a fast and simple solution. This Universal accurate Laser Bore Sighter Kit, Complete With batteries.
The Laser Bore Sighter easily allows the shooter to zero in laser sights or scopes effectively without actually firing the weapon. With 6 different sizes of special designed arbors included, it can be used for most Firearms from .177 to .50 cal.

Included:
Accurate laser boresighter
4 x various calibre arbor - Perfectly split
Slide tab on/off  
3 x Lr-44 batteries