Sightmark SM39018 Red Laser Boresight for .38 Special/.357 Mag - Brass, Includes Battery Pack & Carrying Case

The Sightmark SM39018 red laser boresight for .38 Special and .357 Magnum is a brass cartridge that lets you dial in your revolver or handgun optics without firing a shot. Chamber it like live ammunition, and a red laser dot immediately shows you exactly where your gun is pointing. This cuts setup time at the range dramatically and lets you confirm your scope or sight alignment before you commit rounds downrange—ideal for hunters, sport shooters, and anyone who wants to verify their zero efficiently.

Boresighting with a laser eliminates the guesswork and tedious adjustment cycles that come with traditional bore-in methods. You'll know in minutes whether your optic is roughly on target, then use live fire only for final fine-tuning to account for bullet drop, velocity, and other real-world variables. That means less ammunition wasted on sighting and more rounds available for practice or the field.

This kit includes a battery pack to power the laser and a convenient carrying case, so you can transport and protect your boresight between uses. The brass construction is durable enough for repeated chamber cycling, and the .38 Special/.357 Magnum fit makes it compatible with revolvers and handguns chambered in those popular cartridges. Whether you're zeroing a new mount, switching optics, or just confirming your setup before a hunt or match, the Sightmark laser boresight saves time and frustration.

Key Features

• Red laser dot shows point of aim without firing live ammunition
• Brass cartridge chambers like standard ammo in .38 Special and .357 Magnum firearms
• Battery pack included for immediate use
• Protective carrying case keeps boresight safe in gear or vehicle
• Reduces ammo waste and range time during scope or sight alignment

Specifications

Frequently Asked Questions

What handguns is this boresight compatible with?

The Sightmark SM39018 is designed for firearms chambered in .38 Special or .357 Magnum, so it will chamber in any revolver or handgun that accepts those cartridges.

Do I need to fire live ammo to use this boresight?

No. The laser boresight chambers like regular ammunition but projects a red dot to show your gun's point of aim. Live fire is only needed afterward to fine-tune your zero and account for ballistic variables like bullet drop.

What comes in the box?

The kit includes the brass laser boresight cartridge, a battery pack to power the laser, and a carrying case for safe storage and transport.

Can I use this to sight in multiple firearms?

Yes, as long as those firearms are chambered in .38 Special or .357 Magnum. The boresight will chamber and function in any compatible revolver or handgun.