The SIGHTMARK 308 Winchester Boresighter is an easy-to-use, self-contained system for sighting scopes, red dot sights, and iron sights without firing a shot.
Constructed from durable machined brass, it projects a red laser aligned with the bore axis and has a sighting range of 15-100 yards.
Designed to fit a variety of calibers, the .308 boresighter also accommodates multiple other cartridge sizes, making it versatile for different firearms.