The best rifle light
Quick answer: the Streamlight ProTac Rail Mount HL-X Pro (around $160) is the best rifle light for most AR-15s and carbines. Streamlight rates it at 1,000 lumens and 50,000 candela, it runs on a USB rechargeable pack or two CR123A cells, and the USB kit includes a tail cap switch, a remote pressure switch and an M-LOK mount. For the most reach, the Cloud Defensive REIN 3.0 is rated at 100,000 candela. For the most output, the Streamlight ProTac 2.0 Rail Mount HP puts out 2,000 lumens. On a budget, the Olight Odin S (around $150) comes with its own pressure switch. For a short-barreled rifle, SureFire's compact M340C Mini Scout Light Pro is the benchmark.
A rifle light has a different job from a pistol light: it has to reach further, it usually lives on an M-LOK or Picatinny handguard, and most shooters run it with a remote pressure switch under the support hand. Three things separate the good ones: how far the beam reaches (candela, not just lumens), what switch and mount come in the box, and how it is powered. Every light below except the Olight Odin S was checked against the maker's own spec sheet or product page, and where the retailer's listing disagrees with the maker, we say so and print the maker's figure.
Rifle lights compared
| Light | Best for | Lumens | Candela | Runtime (high) | Battery | Length | Weight | Price |
|---|---|---|---|---|---|---|---|---|
| Streamlight ProTac Rail Mount HL-X Pro | Most rifles | 1,000 | 50,000 | 1.75 hr (SL-B26) / 1.25 hr (CR123A) | SL-B26 included, or 2x CR123A | 5.43 in | 7.2 oz | around $160 |
| Cloud Defensive REIN 3.0 | Most reach | 1,250 (card kit: 1,200) | 100,000 | 65 min | 18650 included, or CR123A | 6.17 in | 6.91 oz | around $280 |
| Streamlight ProTac 2.0 Rail Mount HP | Most output | 2,000 | 85,000 | 2.5 hr | SL-B50 included | 6.30 in | 9.06 oz | around $180 |
| Olight Odin S | Budget | 1,500 | Not published here | Not published here | Rechargeable included, CR123A holder | 5.02 in | 6.8 oz | around $150 |
| SureFire M640DF Scout Light Pro | Premium benchmark | 1,500 (18650) / 1,200 (123A) | 16,000 / 12,800 | 1.5 hr / 1.25 hr | SF18650 included, or 2x 123A | 5.56 in | 5.5 oz | Shown in cart |
| SureFire M340C Mini Scout Light Pro | SBR and PCC | 500 | 7,600 | 1 hr | 1x 123A | 4.1 in | 3.65 oz | Shown in cart |
Specifications from each maker's own info sheet or product page (Streamlight, Cloud Defensive, SureFire), except the Olight Odin S, whose figures come from the retailer's listing because we could not read them from Olight. The REIN 3.0 candela, runtime, length and weight are Cloud Defensive's figures for the standard model. Where two battery types are shown, the first one is the battery in the box. Prices are bands; confirm the current price and availability on the retailer page before you buy.
Our picks
Best rifle light overall: Streamlight ProTac Rail Mount HL-X Pro
1,000 lm · 50,000 cd · 447 m · SL-B26 USB pack or 2x CR123A · 5.43 in · 7.2 oz · tail cap and remote switch in the box
around $160exact price on OpticsPlanet
This is the rifle light to buy for most AR-15s and carbines, because it comes as a complete kit. The USB version on this card (model 88127) ships with the rechargeable SL-B26 pack and a USB cord, a Jack-Cap tail cap that works as a push-button switch, a momentary remote pressure switch that plugs into the same cap, and an M-LOK mount; the light's own clamp fits a Picatinny rail directly. Streamlight rates it at 1,000 lumens and 50,000 candela for a 447 m beam, and it also runs on two CR123A cells. TEN-TAP programming picks one of three modes: high and strobe, high only, or low and high. The retailer's spec table lists a 330 m beam; Streamlight's own info sheet says 447 m, and that is the figure we print. What you give up: it is a big light for a short barrel, and the remote switch is momentary only.
Pros
- Complete kit: SL-B26 pack, USB cord, tail cap switch, momentary remote pressure switch and M-LOK mount all in the 88127 box
- 50,000 candela and a 447 m beam on high, from a 1,000 lumen light
- Multi-fuel: 1.75 hours on high with the SL-B26 pack, 1.25 hours on two CR123A cells
- IP67 with the push-button switch, 2 m impact tested, and a limited lifetime warranty from Streamlight
Cons
- With the remote pressure switch installed the rating drops to IP54, water-resistant rather than waterproof
- The remote switch in the box is momentary only; one owner wishes it had an always-on button
- Owners call it bulky on short guns; one says under 11.5 inches of barrel he would look elsewhere
- Mounting the pressure pad is the most repeated owner complaint, from the rubber mounts to the pad itself
Best for: an AR-15 or carbine with a 14.5 or 16 inch barrel and an M-LOK or Picatinny handguard, where one box should cover light, switch and mount. On an SBR or a pistol-caliber carbine, look at the SureFire M340C or the Olight Odin S instead.
Key specifications
| Manufacturer | Streamlight |
|---|---|
| Output (high) | 1,000 lumens, 50,000 candela, 447 m |
| Output (low) | 60 lumens, 3,100 candela, 111 m |
| Runtime (high) | 1.75 hr (SL-B26) · 1.25 hr (2x CR123A) |
| Runtime (low) | 24 hr (SL-B26) · 21 hr (2x CR123A) |
| Battery | SL-B26 USB rechargeable pack (included on 88127) or 2x CR123A |
| Length | 5.43 in |
| Weight | 7.2 oz with SL-B26 · 6.6 oz with CR123A |
| Switch | Jack-Cap tail cap push-button plus a port for the included momentary remote pressure switch |
| Programs | TEN-TAP: high/strobe, high only, low/high |
| Mount | Integrated clamp for Picatinny (MIL-STD-1913) rails; M-LOK mount included |
| Water and impact | IP67 with push-button switch (1 m for 30 minutes), IP54 with remote installed; 2 m impact tested |
| Body | 6000-series machined aluminum, anodized |
| Warranty | Streamlight limited lifetime |
| Model on this card | 88127, Black (SL-B26 USB kit) |
“This is a good, complete package for a light for a carbine or rifle. It is BRIGHT and the light carries a long way out.”
ChipB, owner (ME) via OpticsPlanet
Best high-candela rifle light: Cloud Defensive REIN 3.0
1,200 lm OPMOD Gray kit (retailer) · standard REIN 3.0 per Cloud Defensive: 1,250 lm, 100,000 cd, 65 min, 6.17 in, 6.91 oz, IPX-8 · 18650 included
around $280exact price on OpticsPlanet
This is the light for reach. Cloud Defensive rates the standard REIN 3.0 at 1,250 lumens and 100,000 candela, twice the HL-X Pro's candela, and owners praise it for throw and spill at the same time. Read the card carefully, because the listing sells more than one version: the price here is the first row on the retailer listing, an OPMOD Gray kit that the retailer lists at 1,200 lumens, while the standard Black and FDE REIN 3.0 rows are rated 1,250 lumens. Cloud Defensive publishes no separate candela figure for the OPMOD kit. It runs on the included 18650 rechargeable battery or on CR123A cells, and Cloud Defensive gives it an IPX-8 rating (submersible to 100 feet for 24 hours) and a lifetime warranty. Those figures, and the runtime, size, weight and switch details below, are Cloud Defensive's for the standard REIN 3.0; the maker says its switch ships as described unless the dealer notes otherwise, and publishes nothing separate for the OPMOD kit. Runtime is the catch: Cloud Defensive's own page lists 65 minutes to the ANSI/PLATO-FL1 standard, while the retailer listing says 95; we print the maker figure.
Pros
- Cloud Defensive rates the standard REIN 3.0 at 100,000 candela, the most throw on this page
- Owners report a hot spot and wide spill together, not one at the expense of the other
- IPX-8 to 100 feet for 24 hours and a lifetime warranty, per Cloud Defensive
- Dual fuel: the 18650 rechargeable is in the box, and it accepts CR123A cells
Cons
- Only an M-LOK mount in the box; owners report there is no Picatinny mount included
- Cloud Defensive ships the standard REIN 3.0 with a constant-on remote switch, and several owners wanted momentary
- One output only: an owner notes "it only has an on/off function", with no low or strobe
- Routing and mounting the remote switch cable is the most common owner complaint
Best for: a rifle that has to identify targets across a field or a long yard, on an M-LOK handguard. If you want a momentary pressure switch or a low mode in the box, the HL-X Pro is the easier setup.
Key specifications
| Manufacturer | Cloud Defensive |
|---|---|
| Output | 1,250 lumens, 100,000 candela (standard REIN 3.0); OPMOD Gray kit listed at 1,200 lumens by the retailer |
| Runtime | 65 min, ANSI/PLATO-FL1 (Cloud Defensive) |
| Battery | 18650 rechargeable (included), accepts CR123A |
| Length | 6.17 in |
| Bezel | 1.3 in |
| Weight | 6.91 oz with battery |
| Switch | Remote switch (single-button constant-on, momentary off) and tail cap |
| Mount | Inline M-LOK mount included; fits Scout-style mounts |
| Water | IPX-8, submersible to 100 feet for 24 hours |
| Body | Type III hard coat anodized 6061-T6 aluminum |
| Warranty | Cloud Defensive lifetime |
| Spec source | Cloud Defensive figures for the standard REIN 3.0 (runtime, length, bezel, weight, switch, mount, water, body); no separate maker spec for the OPMOD Gray kit |
| Model on this card | OPMOD REIN 3.0 kit, Gray |
“It's got a ton of throw and plenty of spill so you can really light up what you're focusing on and still have plenty of light for everything around that.”
Claymore Roomba, owner (FL) via OpticsPlanet
Brightest rifle light: Streamlight ProTac 2.0 Rail Mount HP
2,000 lm · 85,000 cd · 583 m · 2.5 hr on high · SL-B50 USB-C pack · 6.30 in · 9.06 oz
around $180exact price on OpticsPlanet
The most output on this page, and the longest runtime at full power. Streamlight rates the ProTac 2.0 Rail Mount HP at 2,000 lumens and 85,000 candela for a 583 m beam, and runs it for 2.5 hours on high from its SL-B50 rechargeable pack. The retailer listing says the pack charges over USB-C inside the light as well as outside it, so it can stay on the rifle while it charges, and the box (model 89014) includes an M-LOK mount, mounting hardware, a straight momentary pressure switch and the USB-C cord. The costs are size and flexibility: it is the heaviest and longest light here at 9.06 oz and 6.30 in, Streamlight lists only the SL-B50 pack as its battery, and it has the thinnest owner record on this page.
Pros
- 2,000 lumens and 85,000 candela on high, the most lumens on this page
- 2.5 hours on high, the longest full-power runtime among the lights here with a published figure, and 11 hours on low
- Charges over USB-C inside or outside the light, per Streamlight
- Momentary pressure switch and M-LOK mount in the box; IP67 and 2 m impact tested
Cons
- The heaviest light here at 9.06 oz, and 6.30 in long; owners call it chunky
- Runs on the SL-B50 pack only; Streamlight lists no CR123A option for a dead pack
- The pressure switch is momentary only; one owner also reports about six hours to charge
- Only 15 owner reviews on OpticsPlanet, the smallest record of the carded lights
Best for: a home-defense shotgun or a full-size rifle where weight matters less than output and you would rather charge than carry spare cells.
Key specifications
| Manufacturer | Streamlight |
|---|---|
| Output (high) | 2,000 lumens, 85,000 candela, 583 m |
| Output (low) | 250 lumens, 11,500 candela, 214 m |
| Runtime | 2.5 hr high · 11 hr low · 4.5 hr strobe |
| Battery | SL-B50 USB rechargeable pack (included) |
| Length | 6.30 in |
| Weight | 9.06 oz with SL-B50 |
| Switch | Tail cap plus included momentary pressure switch; TEN-TAP programming |
| Mount | Picatinny or M-LOK; M-LOK mount included |
| Water and impact | IP67 (1 m for 30 minutes); 2 m impact tested |
| Warranty | Streamlight limited lifetime |
| Model on this card | 89014, Black |
“Works well, tested at night to 200 plus yards and could see a coyote through my 3x spitfire.”
M, owner (NE) via OpticsPlanet
Best budget rifle light: Olight Odin S
1,500 lm · 273 yd beam · rechargeable with magnetic charging, CR123A holder included · 5.02 in · 6.8 oz (retailer listing)
around $150exact price on OpticsPlanet
The least expensive light on this page, and it still comes as a kit. The retailer lists the Odin S at 1,500 lumens with a 273 yard beam, low, high and strobe modes, a magnetic remote switch as well as a tail switch, and a rechargeable battery that charges through a magnetic cable; a CR123A battery holder in the box gives it a disposable-battery backup. Owners like the price, the build and the charging. What stops it ranking higher: we could not read a candela or runtime figure from Olight itself, so we do not print one, and the recurring owner complaint is fit, with the mount clashing with some M-LOK handguards. The card is the M-LOK mount listing, although that listing's own spec table names a Picatinny mount type, so confirm the mount in the box on the retailer page; the retailer sells a Picatinny-mount version separately.
Pros
- The lowest price here for a light that includes a remote pressure switch and mount
- 1,500 lumens with low, high and strobe modes, per the retailer listing
- Magnetic charging, plus a CR123A battery holder in the box for a backup
- No failure reports among its 28 OpticsPlanet reviews, all of which we read
Cons
- Owners report the mount not fitting some M-LOK handguards, including a Magpul MOE and an Aero Atlas S-One
- No candela or runtime figure we could verify from Olight, so its throw is unrated here
- One owner finds the pressure pad large and hard to place on the rail
- A small owner record: 28 reviews on OpticsPlanet
Best for: a first AR-15 or a range rifle on a budget, on a standard M-LOK handguard. Check your handguard's slot spacing before you order.
Key specifications
| Manufacturer | Olight |
|---|---|
| Output | 1,500 lumens (retailer listing) |
| Beam distance | 273 yd (retailer listing) |
| Modes | Low, high, strobe |
| Battery | Rechargeable lithium ion (included), CR123A battery holder included |
| Charging | Magnetic charging cable |
| Length | 5.02 in |
| Weight | 6.8 oz |
| Switch | Magnetic remote pressure switch and tail switch |
| Body | Aircraft grade aluminum, hard anodized |
| Model on this card | 6975498003694, Black, M-LOK mount |
“Don't let the price point fool you, this light is QUALITY all the way from the packaging to the fit, finish and function.”
mark, owner (MI) via OpticsPlanet
Premium benchmark: SureFire M640DF Scout Light Pro
4.6/5 from 69 reviews on OpticsPlanet · price shown in cart only
Owners of both Scout Lights on this page call SureFire the industry standard, and the M640DF is its Dual Fuel version, running on a rechargeable or on disposable cells. SureFire rates it at 1,500 lumens and 16,000 candela for 1.5 hours on the included SF18650 rechargeable battery, or 1,200 lumens and 12,800 candela for 1.25 hours on two 123A cells, in a 5.56 inch, 5.5 oz body rated IPX7. Mounts for 1913 and M-LOK rails come in the box, and owners praise how they let you set the light close to or away from the handguard. Two things keep it off the podium here. Its beam is built for spill rather than reach: 16,000 candela is about a third of the HL-X Pro's rating, and owners describe it as a light for short and medium ranges. And the switch in the box is a click tailcap only; one owner points out that the pressure pad and tail cap have to be bought separately.
The most repeated complaint in its reviews is flicker or dimming, often under recoil, reported by several owners between 2021 and 2024, two of whom call it a known Dual Fuel issue. We compared that against the lights above: tail-cap cut-outs also appear in a few HL-X Pro and REIN 3.0 reviews, but nowhere else on this page is it the dominant low-star theme. A 2026 owner describes the flicker as a problem of the earlier version; SureFire has not said so in anything we read, so treat it as an owner report. We do not card the M640DF: the retailer shows its price only in the cart, and a price we cannot read is a price we cannot keep honest.
“For CQB, she's perfect.”
dnttech, owner (MI) via OpticsPlanet
Compact benchmark for SBRs and PCCs: SureFire M340C Mini Scout Light Pro
4.8/5 from 47 reviews on OpticsPlanet · price shown in cart only
If the gun is short, the light has to be short too, and this is the one owners fit to an MK18, a Sig MPX K or a Beretta 1301. SureFire rates the M340C at 500 lumens and 7,600 candela for 1 hour on a single 123A, in a 4.1 inch body that weighs 3.65 oz, the lightest on this page; the retailer lists 4.1 oz, and we print SureFire's figure. Mounts for 1913 and M-LOK rails are included, it is rated IPX7, and it has the highest owner rating on this page. The trade-offs are the obvious ones: 500 lumens and 7,600 candela are indoor and short-range numbers, it takes one disposable 123A with no rechargeable option, and owners note that a pressure switch is not in the box. As with the M640DF, the retailer shows its price only in the cart, so it is a benchmark here rather than a buy button.
“if youre looking for light weight illumination, this is the lightest unit i could find.”
Jay, owner (CA) via OpticsPlanet
Which light for your rifle
- AR-15 with a 14.5 or 16 inch barrel. The HL-X Pro is the default: it clamps to Picatinny, ships with an M-LOK mount, and brings its own pressure switch. The Odin S is the budget version of the same idea.
- Short-barreled rifle or pistol-caliber carbine. Size decides. One HL-X Pro owner writes that it “Does not fit on a 11.5" sbr”, and another says it is in the way on an SBR or PCC. The M340C is 4.1 inches long.
- Hunting and open ground. Reach decides, so buy candela: the REIN 3.0 (100,000 cd for the standard model) or the ProTac 2.0 HP (85,000 cd).
- Home-defense shotgun. Owners report the HL-X Pro and the ProTac 2.0 HP on Beretta A300 shotguns and the M340C on a Beretta 1301. Indoors, lumens and a wide beam matter more than reach, and a very bright light can wash out a red dot; one M640DF owner turns his dot up to compensate.
Check your handguard before you buy: owners report that some M-LOK mounts clash with particular handguards, so look at where the mount and the pressure switch will sit.
How to choose a rifle light
- Candela, then lumens. Candela measures the intensity at the center of the beam and decides how far you can identify a target; lumens measure all the light the head puts out. The M640DF is a 1,500 lumen light rated at 16,000 candela; the 1,000 lumen HL-X Pro is rated at 50,000.
- Switch. A tail cap button is the simplest; a remote pressure switch sits under the support hand. Check whether the remote is momentary (HL-X Pro, ProTac 2.0 HP) or constant-on (the standard REIN 3.0), and whether it is in the box at all (not on the SureFire Scout Lights).
- Mount. Picatinny clamps fit almost any rail with a 1913 section; M-LOK mounts sit lower and closer to the handguard but depend on the handguard's slot layout.
- Battery. Multi-fuel lights (HL-X Pro, REIN 3.0, M640DF) take a rechargeable and a disposable backup. The ProTac 2.0 HP runs on its own pack only; the M340C runs on one 123A only.
- Water rating with the remote fitted. Streamlight rates the HL-X Pro IP67 with its push-button cap but IP54 with the remote pressure switch installed, so the rating can depend on the switch you run.
How we chose these
This is a research-based roundup, not a hands-on test. We started from the retailer's rifle weapon light category, opened each listing's full model block (every orderable variant, with used and demo units set aside), and read the owner reviews, including every low-star one. Every specification was then checked against the maker's own info sheet or product page, and where the retailer disagreed with the maker we used the maker's figure and say so on the card. Where we could not read the maker's figure, we say that too and leave the number out. Our scores are our opinion; owner ratings are shown attributed to the retailer that collected them. See our methodology for how we work.
FAQ
What is the best rifle light?
For most AR-15s and carbines, the Streamlight ProTac Rail Mount HL-X Pro. Streamlight rates it at 1,000 lumens and 50,000 candela, it runs on a USB rechargeable pack or two CR123A cells, and the USB kit comes with a tail cap switch, a remote pressure switch and an M-LOK mount. Choose the Cloud Defensive REIN 3.0 for the most throw and the Olight Odin S on a budget.
What is the best light for an AR-15?
On a 14.5 or 16 inch AR-15 with an M-LOK or Picatinny handguard, the Streamlight ProTac Rail Mount HL-X Pro is our pick. On a short-barreled AR or a pistol-caliber carbine, owners call the HL-X Pro bulky; a compact light such as the SureFire M340C Mini Scout Light Pro, at 4.1 inches and 3.65 oz by SureFire's figures, fits better.
Lumens or candela: which matters more on a rifle light?
On a rifle, candela usually matters more. Lumens are the total light the head puts out; candela is the intensity at the center of the beam, which decides how far you can identify a target. The SureFire M640DF puts out 1,500 lumens but SureFire rates it at 16,000 candela, while the 1,000 lumen HL-X Pro is rated at 50,000 candela.
Do I need a pressure switch on a rifle light?
Not always, but most shooters want one. A tail cap switch is the simplest and most reliable, and a remote pressure switch lets your support hand work the light without shifting its grip. Check what the switch does: the HL-X Pro and ProTac 2.0 HP switches in the box are momentary, while Cloud Defensive ships the standard REIN 3.0 with a constant-on switch. The SureFire Scout Lights ship with a click tailcap only.
Should a rifle light be rechargeable or run on CR123A?
A multi-fuel light gives you both. The HL-X Pro takes a USB rechargeable SL-B26 pack or two CR123A cells, and the REIN 3.0 takes an 18650 rechargeable or CR123A cells. The ProTac 2.0 HP runs on its SL-B50 rechargeable pack only, so a spare pack is your backup.
More for your rifle: best pistol light · Streamlight TLR-1 HL review (a full-size pistol light one owner runs on an AR build) · best red dot for an AR-15 · best LPVO · best backup iron sights · Holosun IRIS 3 vs IRIS 4 (laser aiming devices with an IR illuminator; the IRIS 4 adds a white light) · how we evaluate.