The 12 gauge bore sighter is a compact, caliberspecific tool that helps shooters quickly align optics and sights with their shotgun’s chamber. This guide reviews top models, compares features, and highlights what matters when choosing a laser bore sighter for 12-gauge bores. Whether you’re zeroing a red dot or aligning iron sights, a reliable bore sighter can save time and ammunition at the range.
| Product | Brand | Key Benefit |
|---|---|---|
| MidTen Bore Sight 12 GA | MidTen | Compact, ready-to-use with batteries |
| EZshoot Laser Bore Sight 12 GA | EZshoot | Two battery sets for extended use |
| MidTen Green 12 GA Bore Sight | MidTen | Green laser for easy visibility |
| SAWKE 12 GA Bore Sight | SAWKE | Red laser, simple chamber fit |
| Feyachi 12 GA Bore Sight | Feyachi | Caliber-specific red laser, multiple batteries |
Choosing a bore sighter involves weighing laser color, battery life, and chamber compatibility. The products below are focused on 12-gauge shotguns and provide varying battery configurations, laser outputs, and run times to fit different training needs and ranges.
MidTen Bore Sight 12 GA Laser

This bore sighter fits 12-gauge chambers and uses a Class IIIA laser with less than 5mW output. It includes one set of batteries (three AG13) designed to last up to eight hours, making it a practical option for extended practice sessions. The unit is caliber-specific, ensuring a proper alignment with the shotgun’s bore, which helps reduce wasted shells during zeroing.
EZshoot 12 GA Bore Sight

EZshoot’s bore sight uses three batteries at a time and ships with two battery sets for longer work sessions—six LR44 cells in total. The device emphasizes laser accuracy to help zero scopes and sights quickly, aiming to save both time and money at the range. The chamber-specific design ensures straightforward installation and reliable performance for 12-gauge shotguns.
MidTen Green 12 GA Bore Sight

This model provides a clear green laser (510–540 nm) for improved visibility against various backgrounds. It ships with three battery sets (nine batteries total), with power drawn three at a time. Upgraded LR44 batteries extend the run time to about two hours, which is useful for multiple zeroing attempts in a single range session.
SAWKE 12 GA Bore Sight

SAWKE offers a red laser bore sight designed to fit 12-gauge chambers. The kit emphasizes ease of use, with a simple fit within the chamber to ensure proper alignment. The laser helps reduce wasted ammunition and shells by providing a reliable sighting reference during zeroing.
Feyachi Laser Bore Sight 12 GA

Feyachi’s bore sight covers 12-gauge chambers with a Class IIIA laser under 5 mW. The kit includes three sets of batteries, designed to save money and time while providing a straightforward calibration process. It is positioned as an easy-to-use option that supports faster red dot or iron sight alignment for shotguns.
Buying Guide: Key Considerations for 12 Gauge Bore Sighters
- Laser type and output: Most 12 GA boresights use Class IIIA lasers under 5 mW. Consider whether you prefer red or green for better visibility in your range lighting.
- Battery configuration: Look for kits with multiple battery sets if you plan long practice sessions. Battery life can vary from 2 to 8 hours depending on model and usage.
- Chamber compatibility: Ensure the bore sighter is caliber-specific for 12-gauge shotguns to guarantee proper alignment and fit inside the chamber.
- Ease of use: A straightforward on/off switch and a compact form factor support quick setup at the range and repeated zeroing runs.
- Portability and packaging: Some models come with a compact tin case and a carrying pouch, which is helpful for travel and fieldwork.
- Durability and safety: Verify the device uses a safe, low-output laser suitable for practice without excessive risk to eyes or firearm components.
- Battery availability: Consider models that use common battery types (e.g., LR44/AG13) to minimize replacement issues when at the range.
- Compatibility with optics: If you plan to zero a red dot or iron sights, ensure the bore sight provides a reliable reference across different sighting systems.
Across the options presented, you can select a bore sighter based on your preferred laser color, the number of spare batteries included, and how long you typically shoot in one session. All five products target 12-gauge chambers and aim to improve zeroing speed and accuracy in a safe, efficient manner.