Sightmark SM39003 Laser Boresight 30-06 Springfield/270 Cal/25-06 Rem Brass

The Sightmark SM39003 laser boresight is a fast, simple way to get your rifle's optic on paper before you ever pull the trigger. Chamber it just like a regular cartridge and the brass-bodied tool projects a bright red laser dot down the bore so you can confirm and adjust your scope or iron sights to the rifle's true line of aim.

Built specifically for three of the most popular American hunting cartridges - .30-06 Springfield, 270 Cal, and .25-06 Remington - the SM39003 drops cleanly into any rifle chambered for those rounds. The brass housing is shaped to the cartridge profile so the unit seats the same as a live round, giving you a true bore reference rather than a rough approximation.

Power comes from a compact AG3 battery, and Sightmark includes the battery pack along with a protective carrying case so the boresight stays ready in your range bag or gun cabinet. It's a real time-saver for hunters prepping a new rifle, swapping optics between guns, or zeroing a scope ahead of a big hunt.