The best laser bore sight for a pistol
Quick answer: for a single handgun, buy the caliber-specific SightMark Laser Bore Sight for your caliber. It chambers like a round and references the exact bore, which suits a short pistol barrel better than a magnet on the muzzle, and at around $35 it costs less than half the Wheeler Professional (around $100). Order by part number: the 9mm is SM39015 and the .45 ACP is SM39017. The Wheeler wins if you also zero rifles or a shotgun: one magnetic unit fits every caliber, and at 4.4/5 from 107 reviews it is the best-rated of the three on OpticsPlanet. The universal SightMark Triple Duty (around $50) is the budget way to the same one-tool-for-everything result, at under half the Wheeler's price.
A laser bore sight gets a pistol red dot roughly aligned before you spend a box of ammo finding the target. A pistol changes the choice a little: handgun barrels are short, so a chamber cartridge that loads like a round is often a more natural fit than a magnet on a stubby muzzle. The three picks below are the same bore sighters as our main roundup, ranked here for zeroing a handgun.
How we reviewed them: a research-based roundup comparing the published specifications, owner reviews and pricing on OpticsPlanet. We have not used these bore sighters ourselves; scores are our editorial opinion, and owner ratings are shown attributed to their source. See how we evaluate.
Pistol bore sighters compared
| Pick | Price | Type | Fits | Beam (carded model) | Battery | Laser class | Warranty | Owner rating (OpticsPlanet) |
|---|---|---|---|---|---|---|---|---|
| SightMark Laser Bore Sights | around $35 | Caliber-specific chamber cartridge | 9mm Luger (SM39015); .45 ACP is SM39017; over 30 calibers in the line | Red | AG5, AG3 (listed for the line; battery pack included) | Not published | SightMark Limited Lifetime | 3.8/5 from 430 reviews |
| Wheeler Professional Laser Bore Sighter | around $100 | Universal magnetic muzzle attachment | Universal (rifles, shotguns, handguns) | Red (580022); green 589922 on the same listing | Lithium 123A (1 included) | Not published | Not published | 4.4/5 from 107 reviews |
| SightMark Triple Duty Universal Laser Bore Sight | around $50 | Universal magnetic muzzle, self-centering | Universal (rifles and pistols) | Red (SM39014); green on the same listing | AG3 (battery pack included) | Not published | SightMark Limited Lifetime | 4.0/5 from 139 reviews |
The battery listed for the SightMark chamber cartridge covers the whole caliber line, not the 9mm alone. None of the three listings publishes a laser class or output. The same three bore sighters are compared for rifles on our main guide: SightMark chamber cartridge, Wheeler Professional and SightMark Triple Duty. Check price and availability on OpticsPlanet.
Best for a single pistol: SightMark Laser Bore Sights
Caliber-specific chamber cartridge · 30+ calibers (.17 HMR to 12ga) · brass · red laser · lifetime warranty
around $35exact price on OpticsPlanet
For one handgun, this is the cheapest precise way to bore sight. Instead of sitting on the muzzle, the caliber-specific unit chambers like a live round, so it references the exact chamber it is made for, which is the natural fit for a short pistol barrel that gives a magnet little to grip. The card is the 9mm Luger, part number SM39015; the .45 ACP is SM39017 on the same listing, which sells 28 models that are not all one price, so order by part number rather than by the headline figure. It is the most-reviewed bore sighter here, with 430 owner reviews on OpticsPlanet, and its 3.8 is the lowest rating here, pulled down mostly by battery complaints. Owners report the button cells drain fast, so keep spares, and one owner finds the laser difficult to see past about twenty-five yards in daylight, which is beyond the few yards a pistol red dot is bore sighted at anyway.
Pros
- Caliber-specific chamber fit: it loads like a round for a precise, repeatable reference in that exact chamber
- The cheapest way in: popular calibers like .223 Remington and 9mm run under $45, and less common ones are cheaper still, some under $25
- Available in over 30 calibers from .17 HMR to 12 gauge, so rifle, pistol and shotgun owners are covered
- The most-reviewed bore sighter here (430 reviews), with a SightMark limited lifetime warranty
Cons
- Battery life is the recurring complaint: the button cells can drain fast, so keep spares and pull the battery for storage
- One owner finds the laser hard to see past about 25 yards and uses it in shade, early morning or late afternoon
- Caliber-specific: it only fits the chamber you buy, so a multi-caliber shooter needs several (where a universal muzzle unit wins)
- Rated 3.8/5, the lowest here, largely on those battery gripes rather than on how well it aligns
Best for: the owner of one 9mm or one .45 ACP pistol who wants the most precise cheap reference for a red dot. If you also bore sight rifles or a shotgun, one universal magnetic unit below covers every gun you own.
Key specifications
| Manufacturer | SightMark |
|---|---|
| Type | Caliber-specific chamber cartridge |
| Calibers | Over 30 (.17 HMR to 12 gauge; .223 Rem, 9mm, .45 ACP and more) |
| Beam color | Red (green on some models) |
| Material | Brass |
| Battery | AG3 / AG5 (battery pack included) |
| Warranty | SightMark Limited Lifetime |
| In the box | Bore sighter, battery pack, carrying case |
| Condition | New |
“Works well for an inexpensive bore sight... this is not to “zero” in an optic. Rather, it saves you a few rounds for getting close. Do not depend on a bore sighter to dial in your rifle.”
Phillip Holden, verified owner (IN) via OpticsPlanet
Best universal (pistols and rifles): Wheeler Professional Laser Bore Sighter
Universal magnetic muzzle attachment · daylight-visible laser · aluminum housing · Lithium 123A
around $100exact price on OpticsPlanet
If you want one tool for your pistol, your rifles and a shotgun, this is it. The universal magnetic unit snaps onto the muzzle with a soft rubber over-mold, so there is no arbor pushed into the crown, it is hand-tuned at the factory, and at 4.4/5 from 107 reviews it has the highest owner rating of the three here. Rifle owners report landing within 2 to 3 inches at 100 yards, and one owner says it matches sights and bullet impact on their handguns. On a pistol the trade-off is that a short handgun muzzle gives the magnet less to grip than a rifle barrel does, so seat it carefully and squarely. We card the red-beam 580022; the green-beam 589922 on the same listing is the easier of the two to see in daylight and costs more. It runs on a 123A lithium cell rather than button cells. You pay once, for every caliber you own.
Pros
- Universal: one magnetic unit works on every caliber across rifles, shotguns and handguns, with no per-caliber cartridges to buy
- Magnetic muzzle mount with soft rubber over-molding: no arbor pushed into the crown, so no risk of scratching the bore
- The highest owner rating of the three picks here (4.4/5, 107 reviews); owners report on paper within 2 to 3 inches at 100 yards
- Aluminum housing with a hard storage case; hand-tuned at the factory for consistency
- Daylight-visible laser, especially the green-beam model, so you can actually see the dot outdoors
Cons
- The most expensive pick here: the value is in replacing several caliber-specific sights, not in a low sticker price
- The red beam we card is the harder of the two to see in bright sun, and the brighter green-beam model costs about a quarter more, so the cheaper of the two is also the dimmer one outdoors
- The magnet needs a squarely crowned muzzle, so a muzzle brake or flash hider has to come off first, and mount it gently (the magnet can snap onto the muzzle)
- Runs on a CR123A lithium battery, less common to keep on hand than button cells
Best for: the shooter with pistols, rifles and a shotgun who wants one bore sighter for all of them and the best-rated unit of the three. Step down to the SightMark Triple Duty to spend less on a universal sight, or to the chamber cartridge if you only zero one handgun.
Key specifications
| Manufacturer | Wheeler Engineering |
|---|---|
| Type | Universal magnetic muzzle attachment |
| Caliber | Universal (rifles, shotguns, handguns) |
| Beam color | Red (580022, the one we card) or green (589922, dearer and brighter) |
| Housing | Aluminum with soft rubber over-molding |
| Battery | Lithium 123A (1 included) |
| In the box | Bore sighter, hard case, 123A battery |
| Condition | New |
“I’ve used this for several long rifles & AR’s. It puts me within 2 to 3 inches every time. Always on paper at 100yds.”
Danmac (TX) via OpticsPlanet
Best value universal: SightMark Triple Duty Universal Laser Bore Sight
Universal magnetic muzzle · self-centering · brass · AG3 battery · limited lifetime warranty
around $50exact price on OpticsPlanet
This is the middle path: a universal magnetic sight that works on rifles and pistols alike for under half the price of the Wheeler. It self-centers on the muzzle, ships with a battery pack, a carrying case and a SightMark limited lifetime warranty, and owners praise the strong magnet. Choose the red-beam model we card: one owner who could not see the green version on a target outdoors swapped it for the red and calls the red very bright outdoors. It runs on AG3 button cells that drain if the unit is left switched on, so pull them for storage. For a multi-gun owner on a budget, it is the value pick.
Pros
- Universal magnetic muzzle mount for rifles and pistols: no caliber-specific cartridges, and it self-centers on the muzzle
- Under half the price of the premium universal pick, with a carrying case and a SightMark limited lifetime warranty
- Quick and simple in practice: owners zero AR-15s in a few rounds and praise the strong magnet
- SightMark rates it more accurate than push-in arbor sights, and there is no arbor to risk the crown
Cons
- One owner finds sunlight makes the laser disappear even at close range, while another calls the red very bright outdoors, so plan to sight in indoors or in shade
- One owner could not see the green version on a target outdoors and swapped to the cheaper red, though another owner recommends the green
- A muzzle brake or flash hider has to be removed first for the magnet to center on the bore
- Runs on AG3 button cells that can drain if the unit is left switched on, so keep spares
Best for: the owner of a pistol and a rifle or two who wants one universal bore sighter without premium pricing. Step up to the Wheeler for the best-rated unit of the three, or down to the chamber cartridge if you only zero one handgun.
Key specifications
| Manufacturer | SightMark |
|---|---|
| Type | Universal magnetic muzzle (self-centering) |
| Caliber | Universal (rifles and pistols) |
| Beam color | Red (green model available) |
| Material | Brass |
| Battery | AG3 (battery pack included) |
| Warranty | SightMark Limited Lifetime |
| In the box | Bore sighter, battery pack, carrying case |
| Condition | New |
“One of the easiest and fastest units I’ve come across... Just a few rounds was needed to get my AR’s sighted in. Don’t let price fool you into thinking it’s just a cheap unit, well worth the money.”
JC, verified owner (FL) via OpticsPlanet
Bore sighting a pistol: what to know
- Match the tool to a short barrel. A caliber-specific chamber cartridge sits in a 9mm or .45 ACP chamber like a round, which is why it is the natural pistol pick. A universal muzzle magnet still works but has less barrel to grip on a handgun.
- Do it indoors or in shade. Pistol bore sighting is done at a few yards, so a garage or indoor range suits it, and that is where a laser dot is easiest to see: an owner of the SightMark chamber cartridge finds its beam difficult to see past about twenty-five yards and best used in shade.
- It is a head start, not a zero. Bore sighting aligns the red dot with the bore with no shots fired. It does not account for the optic sitting above the bore. Finish by live-firing and adjusting the dot to your point of impact.
- Know your battery. Both SightMark units run on AG-size button cells, and battery drain is the recurring owner complaint on the chamber cartridge, so remove the cells between uses and keep spares. The Wheeler takes one 123A lithium cell.
Wondering how accurate this actually gets you, or what distance to do it at? Both questions are answered in full on how to bore sight a scope, which works through the distance and the expected error rather than repeating a rule of thumb.
New to the process? Start with what is bore sighting and how to bore sight a scope, then finish the job with how to sight in a rifle scope.
FAQ
How do you bore sight a pistol red dot?
Two ways. A caliber-specific chamber cartridge (a 9mm or .45 ACP unit) loads into the chamber like a round and projects a laser straight down the bore; you then adjust the red dot until it sits on the laser dot on a target a few yards away. A universal magnetic sight does the same from the muzzle. Either way it is a rough alignment done with no shots fired, so you finish by live-firing and adjusting to your point of impact.
What is the best bore sight for a 9mm pistol?
For a single 9mm the caliber-specific SightMark chamber cartridge, under $45, is the cheapest precise option: it references the exact chamber it is made for. If you also own rifles or a .45, the universal magnetic Wheeler Professional or the SightMark Triple Duty, under $50, sit on the muzzle and work across every gun you own. All three get a pistol red dot on paper.
What is the best bore sight for a .45 ACP?
The SightMark chamber cartridge made for it, part number SM39017, under $45. Buy it by part number rather than by the price advertised for the range, because this line covers 28 orderable calibers and they are not all the same price. The unit chambers like a live round, so it references the exact bore rather than clamping to a short handgun muzzle, and the same trade-offs apply as with the 9mm: keep spare button cells and use it indoors or in shade, because one owner finds the laser hard to see past about 25 yards in daylight. If you own a .45 and rifles both, a universal magnetic sight is the better single purchase.
Caliber-specific or universal for a handgun?
A caliber-specific chamber cartridge is the most natural fit for a pistol: short handgun barrels give a muzzle magnet little to grip, while a chambered cartridge sits in the bore precisely. Buy the one that matches your caliber (9mm, .45 ACP and more). A universal magnetic unit still works on a pistol muzzle and is the better buy if you want one tool for handguns and rifles both.
Do you still need to zero the red dot after bore sighting?
Yes, always. Bore sighting only aligns the optic roughly with the bore with no shots fired; it does not account for the sight sitting above the bore or for the bullet drop and distance you actually shoot. Once the bore sighter has you on paper, fire a group and adjust the dot to your real point of impact. See our how to sight in a rifle scope guide for the live-fire method.
Prices verified October 14, 2026, carried over from our best laser bore sight hub, whose figures these are. Prices move, so confirm the current figure on the retailer page before you buy.
More: best laser bore sights overall · how to bore sight a scope · what is bore sighting · best pistol light.