A red laser boresight that mounts to your barrel's end might sound like a simple tool, but the Sightmark Triple Duty Universal Red Laser Boresight delivers genuine time-saving value for hunters, shooters, and precision riflemen tired of wasting ammunition during sighting-in. Unlike traditional arbor-type boresights that fit inside the barrel, this end-of-barrel design uses a self-centering magnetic mount to grab the muzzle, keeping metal out of your bore and making setup foolproof—no loose pieces to drop or lose in the field.

The "triple duty" name comes from its versatility across .17 to .50 caliber rifles, shotguns, and pistols. Whether you're zeroing a new hunting rifle, checking a shotgun's pattern point, or dialing in a pistol optic, one boresight handles the job. Simply align the laser dot on your target at a known distance, adjust your scope or sights to match, and you're ready to shoot with confidence. It's fast, cuts down on fouled brass and wasted shells, and works whether you're at the bench, in camp, or backing up during a road trip.

Sightmark's design has earned endorsement from the National Tactical Officers Association and North American Hunting Club—a signal that serious shooters trust it. The unit is compact and travel-friendly, comes with a protective carrying case, three AG13 batteries to get you running, and a set of instructions. If you've ever burned through a box of ammo chasing zero, this boresight pays for itself the first time you use it.

Key Features

• End-of-barrel magnetic mount—no arbor inserts, no parts to lose
• Self-centering design for repeatable, precise alignment
• Works on .17 to .50 caliber rifles, shotguns, and pistols
• Red laser dot for fast, accurate zeroing at distance
• Compact, lightweight, and portable with included carrying case
• Three AG13 batteries included; no additional hardware needed
• Endorsed by NTOA and North American Hunting Club

Specifications

Brand	Sightmark
Caliber Compatibility	.17 to .50 caliber (rifles, shotguns, pistols)
Mount Type	End-of-barrel magnetic
Boresight Type	Red laser
Arbor Design	Self-centering (external mount)
Batteries Included	Three (3) AG13
Carrying Case	Yes, included

Frequently Asked Questions

What calibers and firearm types does this boresight work with?

The Sightmark Triple Duty is designed for .17 to .50 caliber rifles, shotguns, and pistols. One boresight covers most of your arsenal.

How is an end-of-barrel boresight different from an arbor-type?

This boresight attaches magnetically to the outside of your barrel's muzzle rather than fitting inside it. The self-centering design means no metal protrudes into your bore, reducing the risk of damage and simplifying setup. There are no loose arbor pieces to lose or mix up.

What's included in the box?

You get the boresight unit, a protective carrying case, three AG13 batteries, and printed instructions. Everything you need to get to work without buying extras.

Can I use this boresight for pistols and rifles?

Yes. The universal design and magnetic mount work across rifles, shotguns, and pistols in the .17 to .50 caliber range, making it a true multi-platform tool.