Sightmark 300 AAC Blackout Laser Boresight - Precision Rifle Zeroing Tool

The Sightmark 300 AAC Blackout laser boresight is a rifle zeroing tool that lets you dial in your scope without firing a shot. If you're running a 300 Blackout—whether you're hunting suppressed, training at distance, or working a specialized load—getting your optic dead-on before hitting the range saves time, ammo, and frustration. Simply chamber the boresight like a cartridge and a laser dot shows you exactly where your rifle is pointing. From there, you adjust your scope to center that dot, then verify with a few rounds downrange to account for bullet drop and individual rifle characteristics.

This approach works for hunters trying to dial in before season, competitive shooters refining zero between matches, and anyone who'd rather spend ammunition on actual shooting practice than burning through boxes just trying to get on target. A laser boresight eliminates the guesswork of adjusting turrets in the dark or making educated guesses at 100 yards. You'll know your baseline is solid before you ever head to the range, and you can spend your time and ammo where it counts—sharpening your actual marksmanship.

The unit is compact and lightweight, making it easy to pack in a range bag or take into the field. It comes with a carrying pouch for protection and transport. While a laser boresight isn't a substitute for live fire verification, it's one of the fastest ways to get close to zero, especially useful if you're swapping scopes, changing loads, or working with a new rifle platform.

Key Features

• Chambers like standard 300 AAC Blackout ammunition for straightforward use
• Laser dot shows exact point of aim without firing
• Reduces time and ammunition waste during the zeroing process
• Compact and lightweight design for range bag or field use
• Includes carrying pouch for protection and transport
• Helps establish baseline zero before live fire verification

Frequently Asked Questions

How does a laser boresight work?

You chamber the boresight in your rifle just like a cartridge. A laser inside projects a dot that shows where your rifle's barrel is pointed. You then adjust your scope turrets to center that dot, giving you a known starting point. After that, fire a few rounds to verify zero and make final adjustments for your specific load and distance.

Can I use this boresight on rifles other than 300 Blackout?

This boresight is designed for 300 AAC Blackout chambers. It will only chamber in rifles with that specific bore and magazine well. Do not attempt to force a boresight into a different caliber rifle.

What comes in the box?

The Sightmark 300 AAC Blackout laser boresight includes the boresight unit and a carrying pouch for storage and field transport.

Is a laser boresight enough to fully zero my rifle?

A laser boresight gets you very close to zero with minimal ammunition, but it is not a complete substitute for live fire. Once your scope is aligned to the laser dot, you should fire a few rounds at your intended zero distance to verify accuracy and compensate for bullet drop, powder burn variations, and individual rifle characteristics.