A Sightmark .22LR red laser boresight is a chamber-inserted laser alignment tool that lets you dial in your rifle scope or sights without firing a shot. This self-contained boresighting system works by projecting a red laser beam along your bore axis, giving you a quick, repeatable way to check zero at home or the range before you commit to live rounds. Whether you're setting up a new scope, switching optics, or verifying zero after transport, a quality boresight saves time, ammo, and frustration—and the Sightmark fits the bill for hunters and shooters who want a straightforward, no-fuss approach to rifle calibration.

The boresight's design is built around durability and simplicity. A machined brass housing mimics a cartridge case and holds the laser system and batteries in one compact unit. Simply insert batteries, screw on the cap to activate the laser, then insert the entire assembly into your rifle's chamber and gently close the action. At 20–30 yards, aim at your target and adjust your scope or sights so the red dot aligns with your point-of-aim, accounting for any sight offset. Because this is a laser boresight—not a live-fire zero—you'll still want to confirm your adjustments at the range with actual shots, but the boresight gets you in the ballpark fast.

Compatibility spans multiple optic types: work with rifle scopes, holographic red dot sights, and iron sights using the same tool. The included nylon carrying case makes it easy to stash in a pocket, toolkit, or range bag, so you're never caught at the range without it. This .22LR model is tailored to fit .22 rimfire chambers, making it ideal for .22 rifles and .22 conversion kits on centerfire platforms.

Key Features

• Red laser projects along bore axis for precise, no-fire zeroing
• Machined brass housing is durable and built to last
• Simple on/off control via battery insertion and cap
• Works with scopes, red dot sights, and iron sights
• Works from 20–30 yards for quick field testing
• Includes nylon carrying case for convenient storage and transport

Specifications

Caliber	.22LR
Laser Type	Red laser
Housing	Machined brass
Compatible Sights	Scopes, holographic red dot sights, iron sights
Accessories Included	Nylon carrying case

Frequently Asked Questions

Will this boresight work with my rifle scope, red dot, and iron sights?

Yes. The Sightmark red laser boresight is compatible with rifle scopes, holographic red dot sights, and iron sights, so you can use it with whatever optic you have mounted on your .22 rifle.

How do I turn the laser on and off?

Insert batteries into the boresight housing to activate the laser. Screw the cap back on to keep it running. Remove the batteries when you're done to turn it off and prevent battery drain.

What distance should I use to boresight my rifle?

Aim at a target 20–30 yards away. After zeroing with the laser, confirm your adjustments at the range with live-fire test shots to finalize your sight adjustment.

Is this tool suitable for .22 conversion kits?

Yes. The .22LR chamber fit makes this boresight compatible with .22 conversion kits installed on centerfire rifles, as well as dedicated .22 rifles.