Sightmark laser bore sights are tools designed to help shooters quickly align their firearm’s sights or optic with the barrel’s bore. By projecting a laser beam downrange from the barrel, these bore sights make it easier to zero scopes, red dots, or iron sights without firing a single round.

Most Sightmark laser bore sights are caliber-specific or come with adapters for multiple calibers. Always check the product specifications to ensure compatibility with your firearm’s chamber size (e.g., .22, .30, 9mm), and use any included sleeves or adapters to achieve a proper fit.

Sightmark laser bore sights provide a reliable starting point for zeroing your optic or iron sights. They are highly accurate for initial alignment at close range (usually 10–25 yards), but fine-tuning at the range with live fire is still recommended to achieve precision zero at your desired distance.

Yes — Sightmark laser bore sights are powered by small internal batteries (typically button cells) that power the visible laser beam. Battery life varies by model and usage time, so it’s a good idea to carry spare batteries if you bore-sight frequently.