The LASER BORESIGHTER by SIGHTMARK is a self-contained system that projects a red laser for easy sighting without firing a shot, compatible with various sights.
Constructed from durable machined brass, the boresighter resembles a cartridge case and includes batteries, a nylon carrying case, and fits multiple calibers.
It is designed for easy use by inserting into the chamber and adjusting your sights at a range of 15-100 yards to zero in the point-of-aim with the laser dot.