Try the X03 for 30 days. If it doesn't get you zeroed faster than anything you've used, return it for a full refund. No restocking fee, no interrogation. And the laser itself is covered for life under our limited lifetime warranty.
Press & drag to view
2-4
Shots to zero
.22-.50
Calibers covered
LIFETIME
Warranty included
30-DAY
Money back guarantee
Built to actually get the job done
No gimmicks. Spend less time sighting in and more time shooting.
On paper, first shot
True-to-bore alignment puts your point of aim where the barrel actually points. Your first round is on paper, not in the berm.
Made for indoor zeroing
A crisp red dot that is easiest to read indoors and in low light. Zero to 25 yards outdoors or up to 100 indoors.
One kit, every gun you own
Six tool-free adapters for .22–.50 cal plus 12GA and 20GA. Rifles, pistols, and shotguns. Batteries and case included.
Pays for itself fast
Zeroing the old way burns 15–20 rounds per gun. At centerfire prices, the X03 pays for itself by your second zero.
Simple to use
Zeroed in three steps
If you can load a magazine, you can use the X03.
01
Seat it
Pick the adapter for your caliber or gauge and seat the X03 in the muzzle. Tool-free.
02
Match the dot
At 15–25 yards, adjust your optic until the reticle meets the red dot.
03
Confirm & go
Fire 2–4 rounds to confirm, fine tune, done. Head home, money saved.
Know what you're buying
X03 vs. the cheap stuff
Bargain-bin boresighters are why people think boresighting doesn't work.
| Feature | Aeroshot X03 Red | Generic boresighter |
|---|---|---|
| Beam | Crisp, machined-true red dot | Dim diode, scattered dot |
| Bore fit | Machined snug — dot doesn't wander | Rattles in the bore |
| Caliber coverage | .22–.50 plus 12GA/20GA included | One caliber, adapters extra |
| Warranty | Limited lifetime | 30 days, if any |
| Support | US-based, real humans | Marketplace seller |
Zeroing outdoors in full sun? Step up to the X03 Green.
4.9 average · 16 reviews
Range-tested by real shooters
Pulled from verified purchases of the X03 Red.
RR
Richard R.
✓ Verified buyer
★★★★★
Shooters need this
"Nice and compact with bore sizes you will actually need. Great value for the price."
YP
Youngsun P.
✓ Verified buyer
★★★★★
Great for 9mm
"I tested it by rotating the whole unit 360 degrees while it was inside the barrel just to see if the dot would wander... this one just stayed in the same spot and spun in place. That shows it's actually aligned right. I'm testing at 25 yards right now and it's dead on."
G
Garrett
✓ Verified buyer
★★★★★
Good quality
"This bore sighter is accurate when used correctly... Insert properly, find the stable dot position, and it gets you within 1-2 inches at 25 yards. Saves lots of ammo."
Zero it or send it back
30-DAY MONEY-BACK · LIMITED LIFETIME WARRANTY · ASSEMBLED IN USA
Before you ask
Frequently Asked Questions
Should I get the Red or Green version?
Choose Red if you zero indoors, shoot at 25 yards or under, want longer battery life, or are a first-time user. Choose Green if you need outdoor daylight visibility beyond 50 yards, or zero outdoors for hunting or competition.
Short version: indoor shooter, Red. Hunter or outdoor zeroing, Green.
Why is the Red version cheaper than the Green?
Green lasers require more complex frequency-doubling technology, making them more expensive to produce. Red lasers use simpler diode technology. Both versions get the same precision machining and quality control.
Is the red laser visible in daylight?
The Red X03 is optimized for indoor and low-light use: clearly visible up to 100 yards indoors and about 25 yards at dawn or dusk. Direct bright sunlight cuts that to 15 yards or less. If most of your zeroing happens outdoors in daylight, the Green model is the better pick.
Will the X03 work with a subcompact gun?
Yes, as long as the barrel is at least 2.25 inches long, excluding the chamber.
What calibers does this bore sight work with?
Most common calibers from .22 to .50, plus 12GA and 20GA shotguns using the included extension rod. It is not recommended for subcompact or short-barrel handguns, or rifles with long muzzle devices. It does not work with revolvers.
Will the adapters scratch or damage my barrel?
No. The adapters are precision-machined brass and aluminum, both softer than steel barrels, so they cannot scratch your rifling.
How long do the batteries last?
About 2 hours of continuous use. A typical zeroing session runs 3 to 5 minutes, so a set of batteries is good for roughly 30 to 40 sessions. The red laser also draws about 40 percent less power than green.
Is the laser eye-safe?
Yes, when used properly. The X03 uses a Class 3R laser (5mW), the same classification as common consumer laser pointers, compliant with FDA safety standards. Never look directly into the beam, and always verify the firearm is unloaded before boresighting.
How do I use the X03 Red? Step-by-step
Verify the firearm is completely unloaded. Select the adapter for your caliber, thread it onto the boresighter, and seat it in the barrel. Power on, aim at a target 15 to 25 yards away, and adjust your optic until the reticle sits on the laser dot. Power off, remove, and confirm with 2 to 4 live rounds. Total time: about 5 to 10 minutes.
Will the laser dot wobble or make circles when rotated?
No. The X03 is a high-precision bore sight; under normal conditions the dot stays centered when the unit is rotated 360 degrees in the bore. If you see a circle, the unit or adapter isn't fully seated. Reseat it snug and the dot locks in.
User Manual
Download the complete user manual for setup, adapter installation, and bore sighting instructions.
