MidTen Laser Bore Sight Kit for.223/9mm/243-308WIN - Fast Zeroing

In this review the MidTen Laser Bore Sight Kit is evaluated for shooters who want a quick and low-cost way to get on paper before live-fire zeroing. The kit includes chamber-sized lasers for common calibers and enough LR41 batteries to get started, and its single biggest selling point is the simplicity: these brass boresighters sit in the chamber and project a bright red dot that helps align optics or iron sights without firing a round. For budget-minded hunters and range shooters the kit removes much of the guesswork before final adjustments.

Key Features

• Common caliber set: Includes a 9mm, a.223/5.56mm and a 243/308WIN boresighter so one small kit covers multiple popular firearms.
• Plenty of batteries: Supplied with 12 upgraded LR41 batteries so users can get several sighting sessions before needing replacements.
• Accurate from factory: The lasers are described as accurate out of the box and make initial zeroing faster by projecting a reliable reference point downrange.
• Brass construction: Machined brass bodies feel sturdy and resist temperature changes better than cheap plastics for a secure chamber fit.
• Class IIIA laser: Less than 5mW red laser output provides a bright dot for short to moderate ranges while remaining a common boresighter class.

Who It's For

The MidTen kit is best for recreational shooters, hunters, and anyone who frequently changes optics or works with multiple platforms in the calibers covered. It is particularly useful for sighting in rifles and pistols at the bench or on a tripod where a visible red dot speeds up alignment before live fire.

Those who need absolute premium alignment for long-range precision work or who require calibers outside the included set should look elsewhere or supplement this kit. Also, if sustained continuous run time is critical, plan on carrying spare LR41 cells since the smaller 9mm unit runs about an hour and the rifle-size units about 1.5 hours per battery set.

Pros & Cons

Pros

• Bright, easy-to-see red dot that simplifies initial zeroing and sight alignment.
• Three caliber-specific, chamber-sized lasers cover common pistol and rifle rounds in one kit.
• Sturdy brass construction that gives a solid fit and temperature resistance compared with plastic alternatives.
• Supplied batteries let you start using the boresighters immediately out of the tin case.

Cons

• Customer feedback on overall functionality and long-term quality is mixed, so occasional units may perform below expectations.
• Battery life is limited per session, requiring spares for extended use.

Specifications

Brand	MidTen
Calibers included	9mm,.223/5.56mm, 243/308WIN
Laser class	Class IIIA, <5mW
Battery type	LR41 (12 pcs included)
Construction	Brass
Packaging	Small tin case for storage and transport

Our Verdict

The MidTen Laser Bore Sight Kit is a practical, low-cost way to speed initial sighting for common pistol and rifle calibers; it offers bright lasers, a sturdy brass build and enough batteries to begin using right away. For hunters and casual range shooters who want to save time and reduce live-fire adjustments, this kit is good value, but buyers should accept mixed feedback on long-term quality and plan on replacing LR41 cells for extended use.

Frequently Asked Questions

Will these boresighters work in both pistols and rifles?
Yes, the kit includes a 9mm unit for pistols and.223/5.56mm and 243/308WIN units sized for compatible rifle chambers.

How long do the batteries last in each unit?
The 9mm unit uses two LR41 cells for about 1 hour, while the.223/5.56mm and 243/308WIN units use three cells and run about 1.5 hours per set.

Are the lasers safe to use for alignment?
They are Class IIIA lasers under 5mW intended for boresighting; users should still avoid direct eye exposure and follow normal laser safety precautions.