Laserlyte MBS-1 Mini Bore Sighter .22-50 Cal Rifles Handguns Red

The Laserlyte MBS-1 Mini Bore Sighter is a red laser bore alignment tool designed to speed up scope, red dot, and iron sight zeroing across any rifle or handgun chambered in .22 to .50 caliber. Whether you're setting up a new hunting rifle, dialing in a precision optic, or getting your carry gun ready to shoot, this compact tool projects a bright red laser dot that lets you establish bore center without firing a shot—saving ammo and time at the bench or range.

The MBS-1 uses a cone-shaped spud with four interchangeable inserts to fit the bore of rifles and handguns up to .50 caliber, automatically centering the laser unit for consistent alignment. Factory-calibrated with precision tooling, the laser projects a 2" to 3" diameter dot at 100 yards, giving you a clear reference for your line of sight. The tool works on rifles with barrels 4" or longer and handguns with barrels 3" or longer, covering the vast majority of firearms in a working gun safe.

Built for durability in the field and shop, the MBS-1 is CNC-machined from aluminum and hardcoat anodized to resist nicks and wear. It runs for 1.5 hours continuously on three 393 batteries (included), and digital circuitry automatically manages laser output to keep brightness consistent until the batteries are nearly spent. No batteries to hunt down—they ship with the kit, ready to go straight out of the box.

Key Features

• Red laser bore sighter for quick scope and sight zeroing
• Fits .22 to .50 caliber rifles and handguns
• Four interchangeable inserts for universal bore fit
• Factory-calibrated precision alignment
• Projects 2" to 3" dot at 100 yards
• CNC-machined aluminum with hardcoat anodized finish
• 1.5 hours continuous runtime per battery set
• Automatic digital circuitry maintains consistent brightness
• Includes three 393 batteries

Specifications

Frequently Asked Questions

Will the Laserlyte MBS-1 work with my .308 hunting rifle?

Yes. The MBS-1 handles any caliber from .22 to .50, and as long as your rifle has a barrel length of 4" or longer, the tool will fit and center properly in the bore using one of the four included inserts.

Can I use this bore sighter on a handgun as well as a rifle?

Yes. The MBS-1 is designed for both rifles and handguns. Handguns require a minimum barrel length of 3", while rifles need 4" or longer. The interchangeable inserts adjust to fit any bore in the .22 to .50 range.

How long do the batteries last, and are they included?

The MBS-1 runs for 1.5 hours of continuous use on three 393 batteries. All three batteries are included with the kit, so you can start using it right away.

Does the laser need to be re-calibrated, or does it come factory-calibrated?

The MBS-1 comes permanently calibrated from the factory using precision alignment tooling. No user calibration is required.