Hikmicro Stellar SQ50L 4.0 | Thermal Scope
$5,999.00
The HIKMICRO Stellar SQ50L 4.0 is a thermal rifle scope built around a 640 × 512 VOx detector with 12 µm pixels and a 50mm F1.0 lens. Magnification runs from 3.5×–28.0×. The laser rangefinder is built into the lens, so this thermal scope keeps a traditional riflescope profile. One limit to know up front: HIKMICRO’s 2,600 m figure is a detection range rating. It is not an identification range, and it does not mean you can identify game at that distance. If you are still deciding on a type, see all of our thermal scopes.
HIKMICRO Stellar SQ50L 4.0 Thermal Scope: What You Get
The figures below come from HIKMICRO’s published datasheet for the SQ50L 4.0. They are manufacturer figures.
640 × 512 Thermal Detector and 50mm F1.0 Lens
A 640 × 512 VOx uncooled detector with 12 µm pixels works in the 8–14 µm band at 50 Hz. The 50mm F1.0 lens gives 3.5×–28.0× magnification and an 8.8° × 7.0° field of view. Focusing is by a side focus ring, with a minimum focusing distance of 10 m. If you are comparing options at this resolution, see our HIKMICRO 640 thermal scopes.
1,200 m Laser Rangefinder in the Lens
The laser rangefinder is part of the scope, so there is no separate box mounted on top. It is a 905 nm Class 1 laser that measures from 10 m out to 1,200 m with ±1 m accuracy.
Ballistic Calculation and Zeroing
The SQ50L lists a ballistic calculation feature, five zeroing profiles and freeze zeroing, so you can store set-ups for more than one rifle or load.
AMOLED Display and Image Processing
The image is shown on a 1.03-inch 2560×2560 AMOLED display, with an 8 mm exit pupil, 55 mm eye relief and a -5D to +5D diopter range. Six palettes are included: Black Hot, White Hot, Red Hot, Fusion, Red Monochrome and Green Monochrome. Brightness, contrast and tone (cold or warm) are adjustable. The datasheet also lists the HIKMICRO Shutterless Image System (HSIS), Image Pro 4.0, Zoom Pro and Sync Pro.
Recoil Rating
The datasheet rates the SQ50L to 6,000 J of maximum recoil. The scope is IP67 rated and works from -30°C to 55°C.
Recording and App Connection
The scope has 64 GB of built-in eMMC storage for video, audio and snapshots, plus recoil-activated recording and a local album for review. Picture-in-picture, Hotspot and Hot Track are listed as features. Per the Quick Start Guide, the HIKMICRO app connects to the scope over its own hotspot for live view and remote control, firmware upgrades and saved footage.
Battery Life
Two internal rechargeable lithium batteries and one replaceable 18650 battery give 9.5 hours of continuous running at 25°C with the rangefinder on, which is HIKMICRO’s rating. The internal batteries charge over USB-C (5 V DC/2 A, QC3.0), and the external 18650 charges in the supplied battery charger.
Standard 30 mm Tube and Ring Fit
The SQ50L has a standard 30 mm tube, so it sits in ordinary 30 mm rings like a traditional riflescope. Centre height is 36 mm, and the scope weighs 1,008 g with the external battery fitted. Ring height and clearance over the barrel depend on your rifle, so check them before you order. Our thermal mounts guide covers mounting options.
SQ50L 4.0 or SQ50LR 4.0: Which One?
The SQ50LR 4.0 is the rail-mount version of the same scope. On the datasheets, the detector, lens, rangefinder, battery and features match. Only two rows differ:
| Specification | SQ50L 4.0 | SQ50LR 4.0 |
|---|---|---|
| Mounting | Standard 30 mm tube | Rail mounting |
| Weight (with external battery) | 1,008 g | 1,073 g |
Choose the SQ50L if you want to use 30 mm rings. Choose the SQ50LR if you want to mount on a rail.
SQ50L 4.0 Compared With Stellar SQ50L 3.0
The Stellar SQ50L 3.0 is still available. This table only lists specs that are published for both generations. All figures are the manufacturer’s own, and we have not compared image quality between the two.
| Specification | SQ50L 3.0 | SQ50L 4.0 |
|---|---|---|
| Detector | 640 × 512, 12 µm | 640 × 512, 12 µm |
| Lens | 50 mm, F1.0 | 50 mm, F1.0 |
| Magnification | 3.6×–26.6× | 3.5×–28.0× |
| Field of view (degrees) | 8.8° × 7.0° | 8.8° × 7.0° |
| Detection range | 2,600 m | 2,600 m |
| Laser rangefinder, maximum range | 1,000 m | 1,200 m |
| Display | 1.03-inch 2560 × 2560 OLED | 1.03-inch 2560 × 2560 AMOLED |
| Exit pupil | 6 mm | 8 mm |
| Eye relief | 45 mm | 55 mm |
| Dimensions | 422.5 × 88.4 × 74.5 mm | 439.6 × 82.9 × 74.3 mm |
SQ50L 4.0 Specifications
| Specification | Hikmicro Stellar SQ50L 4.0 |
|---|---|
| Image Sensor | VOx Uncooled Focal Plane Arrays |
| Max. Resolution | 640 × 512 |
| Frame Rate | 50 Hz |
| Pixel Interval | 12 µm |
| Response Waveband | 8 µm to 14 µm |
| Lens (Focal Length) | 50 mm, F1.0 |
| Focus Mode | Side focus ring |
| Detection Range | 2,600 m |
| Min. Focusing Distance | 10 m |
| Magnification | 3.5×–28.0× |
| Field of View (H × V), degrees | 8.8° × 7.0° |
| Display | 2560×2560, 1.03-inch AMOLED |
| Palettes | Black Hot, White Hot, Red Hot, Fusion, Red Monochrome, Green Monochrome |
| Exit Pupil | 8 mm |
| Eye Relief | 55 mm |
| Diopter Range | -5D to +5D |
| Image Features | HSIS, Image Pro 4.0, Zoom Pro, Sync Pro |
| Recording | On-board video, audio recording, snapshots, recoil-activated recording |
| Storage | Built-in eMMC, 64 GB |
| Other Features | PIP, Hotspot, Hot Track, Standby Mode, Local Album |
| Zeroing | 5 zeroing profiles, freeze zeroing |
| Ballistic Calculation | Yes |
| Max. Recoil | 6,000 J |
| Laser Rangefinder | 905 nm, Class 1, 10 m to 1,200 m, ±1 m accuracy |
| Battery | Two rechargeable lithium batteries (internal), one replaceable rechargeable 18650 battery (external) |
| Battery Operating Time | 9.5-hour continuous running (25°C, LRF on) |
| Charging | 5 V DC/2 A USB Type-C, supports QC3.0 (built-in battery only; external battery charges in the battery charger) |
| Mounting | Standard 30 mm |
| Dimensions | 439.6 × 82.9 × 74.3 mm |
| Weight | 1,008 g with external battery |
| Centre Height | 36 mm |
| Working Temperature | -30°C to 55°C (-22°F to 131°F) |
| Protection Level | IP67 |
| Model (datasheet) | HM-TR86-50Y3G/WL-SQ50L 4.0 |
What’s Supplied
Per the datasheet: scope (×1), battery (×2), battery charger (×1), Type-C cable (×1), lint-free cloth (×1), scope guard (×1), bag (×1) and Quick Start Guide (×1). The Quick Start Guide also lists a bag strap and scope protective stickers (only for some models).
Questions Buyers Ask About the SQ50L 4.0
Is the Stellar SQ50L 4.0 worth it over the Stellar SQ50L 3.0?
On paper, the 4.0 has a longer rangefinder reach (1,200 m against 1,000 m), a 1.03-inch AMOLED display, an 8 mm exit pupil (6 mm on the Stellar SQ50L 3.0) and 55 mm eye relief (45 mm). The detector, lens and detection rating are the same. We have not tested the two side by side, so we make no claim about image quality. The table above has the full list, and our SQ50L 3.0 review covers the older scope.
How far can I actually see and identify game with a 640×512, 50mm scope?
HIKMICRO rates the detection range at 2,600 m. That is a detection rating, not an identification range. The datasheet gives no test conditions and no identification range, so we do not quote one. How far you can identify an animal depends on its size, the conditions and your magnification. Our guide on how to choose a thermal scope explains the difference between detection and identification. If you want a larger detector and a 75mm lens, the SX75L 4.0 is in the same range.
Will the SQ50L 4.0 fit my existing rings and rifle?
The SQ50L has a standard 30 mm tube and a centre height of 36 mm. Whether it suits your rings and rifle depends on ring height and clearance over the barrel, so check those before ordering. Our thermal mounts guide has more detail. If you want to mount on a rail instead, look at the SQ50LR 4.0.
How long does the battery last?
HIKMICRO rates it at 9.5 hours of continuous running at 25°C with the rangefinder on. It has two internal rechargeable batteries plus one replaceable 18650. Only the internal batteries charge over USB-C. The 18650 charges in the supplied battery charger. The datasheet does not give run time in the cold or with recording on.
Does the laser rangefinder feed the ballistic calculator?
The datasheet lists ballistic calculation, five zeroing profiles, freeze zeroing and distance measurement as separate features. It does not say whether the range reading is used by the ballistic calculation automatically, and it gives no click values for the 4.0, so we do not claim either.
Will it handle my rifle’s recoil?
HIKMICRO rates the SQ50L to 6,000 J of maximum recoil. That is a manufacturer figure, and HIKMICRO does not publish a list of calibres, so we do not name any.
SQ50L or SQ50LR: which one do I get?
The two scopes share the same detector, lens, rangefinder and battery on the datasheets. The differences are mounting (30 mm tube on the SQ50L, rail mounting on the SQ50LR) and weight (1,008 g against 1,073 g with the external battery). Pick the mounting style that suits your rifle and set-up.
Stellar 4.0 Manual
Download the Stellar 4.0 quick start guide (PDF).
Choose Hikmicro Stellar 4.0 Model
| (k) Stellar 4.0 Series | SQ50L 4.0 – 12mk – 3.5x – 640px – 2600m |
|---|
Popular Unimounts + Rings + Quick Detach 2026
| Mount Brand | Burris, Darnox, Magne-Tech, SPUHR, Warne |
|---|---|
| Tube Size | 30mm Tube |
| Mount Models | Burris AR-PEPR – 30mm Tube – 40mm Height – 50mm Cantilever, Darnox 7075 Rings – 30mm Tube – 32mm Height – 0 MOA, Darnox 7075 Rings – 30mm Tube – 37mm Height – 0 MOA, Darnox ObsidianOne – 30mm Tube – 38mm High – 50mm Cantilever – 0 MOA, Magne-Tech 30mm Tube – TOP PART ONLY – 38.5mm high, (Part B), Magne-Tech BASE ONLY goes to picatinny rail (Part A), Magne-Tech FULL KIT – 30mm Tube – 38.5mm Height, SPUHR – QDP-3002 – 30mm Tube – 38mm Height – 0 MOA, SPUHR – QDP-3006 – 30mm Tube – 34mm Height – 0 MOA, SPUHR – QDP-3016 – 30mm Tube – 38mm Height – 0 MOA – 40mm Offset, SPUHR – QDP-3046 – 30mm Tube – 34mm Height – 0 MOA – 40mm Cantilever (recommended for Thermal), Warne XSKEL QD – 30mm Tube – 36mm Height – 0 MOA – 40mm Cantilever |
ADM American Defense - Quick Detach Mount
| American Defense Series | DELTA, RECON |
|---|---|
| Tube Size | 25mm Tube, 30mm Tube, 34mm Tube |
| Mount Height | 27mm, 29mm, 34mm, 35mm, 38mm, 39mm, 43mm, 49mm |
| American Defense Mount Models | AD DELTA QD C STD – 30mm Tube – 38mm Height – 0 MOA – (50mm Cantilevered for better eye relief, AD DELTA QD C-H – 30mm Tube – 49mm Height – 0 MOA – (50mm offset for better eye relief), AD DELTA QD C-H STD – 30mm Tube – 49mm Height – 0 MOA, AD DELTA QD C-M – 30mm Tube – 43mm Height – 0 MOA – (50mm offset for better eye relief), AD DELTA QD RC-30-STD – 30mm Tube – 43mm Height – 0 MOA – (25mm offset for better eye relief) – Left Side Levers, AD DELTA QD RC-L-30-STD – 30mm Tube – 34.9mm Height – 0 MOA – (25mm offset for better eye relief), AD DELTA QD STD – 25mm Tube – 38mm Height – 0 MOA, AD DELTA QD STD – 30mm Tube – 38mm Height – 0 MOA, AD DELTA QD STD – 34mm Tube – 39mm Height – 0 MOA, AD Recon 30 STD QD – 30mm Tube – 38mm Height – 0 MOA – (50mm Cantilevered for better eye relief), AD Recon 30 STD QD – 25mm Tube – 34mm Height – 0 MOA – (50mm Cantilevered for better eye relief), AD Recon 30 STD QD – 34mm Tube – 39mm Height – 0 MOA – (50mm Cantilevered for better eye relief), AD Recon H QD STD – 30mm Tube – 49mm height – 0 MOA, AD Recon QD SL-30-STD – 25mm Tube – 27mm Height – 0 MOA, AD Recon S 30 STD QD – 30mm Tube – 37mm Height – 0 MOA, AD Recon S QD STD – 34mm Tube – 39mm Height – 0 MOA, AD Recon SL QD STD – 30mm Tube – 29mm Height – 0 MOA, AD Recon SL QD STD – 34mm Tube – 29mm Height – 0 MOA |
Quality Picatinny Rails
| Rifle Brand | Anschutz, Bergara BMR steel, Bergara Premier, Brno, Browning, CZ, Howa, Kimber, Lithgow, Marlin, Other / I Need Help, Remington, Ruger, SAKO, Sauer, Savage, Steyr, Tikka, UTG / Uni Dovetail, Weatherby, Winchester |
|---|---|
| Picatinny Rail | 11mm Dovetail to Picatinny Adapter – 145mm Long – MNT-ADP1102 CCOP, 12mm – 145mm Long – Dovetail to Picatinny Adapter – MNT-ADP1102 CCOP, 3/8 – 9.5mm – 125mm Long Dovetail to Picatinny Adapter – WODG048 CCOP, 3/8 Dovetail to Picatinny Adapter – 90mm – D0012 CCOP, 5/8 – 16mm – 145mm Long – Dovetail to Picatinny Adapter – MNT-ADP85002 CCOP, A-Bolt LA 0 MOA 43100 EGW, A-Bolt SA 0 MOA 43000 EGW, AC Howa 1500 Mini Action, Anschutz 11mm – 1450, 1451, 1415, 1416, 1418, 1420, Model 64 / Match 64, 1710, 1712, Model 54 / Match 54, 1761, 1903, 1907, 1913 – MNT-ADP1102 – CCOP, Anschutz 54 Action, 54.18, 1710, 1712 – Talley, Armacore Ruger, LA M77, M77 MKII, Hawkeye, Armacore Ruger, SA M77, M77 MKII, Hawkeye, Armacore Tikka T3, T3x, 0 MOA Australian Made, ATP Howa 1500 SA MOA, ATP Lithgow LA101 RH MOA, ATP Lithgow LA102, LA105, 0 MOA, ATP Remington 700 SA MOA, ATP Tikka M55 Black MOA, ATP Tikka T1x RH 0 MOA, Bergara BMR steel, Contessa SAKO 85 M PH13 – 75 IV, MA 05 M, L691, TRG-S M995, Contessa SAKO 85 S-SM PH12, CONTESSA SAKO 90, S90, SK90, S20/CZ 600 0 MOA – Picatinny on Picatinny, Contessa SAKO XS 85, 75 I, MA 05 XS, L461 Vixen, S491 – PH31 Standard, CZ 11mm Dovetail 452, 453, 455, 511, 512, 515 – 0 MOA – EGW HD 80910 [ejection slot], CZ 3/8 dovetail 452, 453, 455, 511, 512, 515 – 0 MOA – EGW HD 80900 [ejection slot], CZ 452 / 455 / Brno newer Model 2, 2E – 3/8' (11mm) – MNTCZ455 – CCOP, CZ 452 EURO / CZ 455 / CZ 512 / CZ 513 Rimfire – 11mm Dovetail – TLP0025008 – Talley, CZ 527 / OLD Brno 1 and 2 – 5 / 8 (16mm) Dovetail – MNTCZ527 – CCOP, CZ 527 American 16mm Picatinny Rail – 0 MOA – 80928 EGW HD, CZ 550 / CZ 557 / BRNO ZKK 600 / ZG-47 – Standard / Medium Action – 19mm Dovetail – 80914 – HD EGW, DN CZ 457, DN Sako S 85, 75 III, MA 05 S, L579 Forester, M591, VL63 Finnwolf, DN Sako XS 85, 75 I, MA 05 XS, L461 Vixen, S491, EGW HD Howa 1500/Weatherby Vanguard SA 81040, EGW HD Remington 700 SA 80000, EGW Savage Edge/Axis 41800, EGW Savage Flat Back SA 41200, EGW Savage Round Back SA 41000, EGW Winchester 70 SA 42000, Enter CZ Model In Notes Below, Kimber LA 84 (84L) – HD – 0 MOA (Center Spread 3.88″) EGW 81013, Kimber LA 8400 (8400 Magnum) 0 MOA (Center Spread 4.325″) HD EGW 81003, Kimber SA 84 (84M) – HD – 0 MOA (Center Spread 3.352″) EGW #81010, Kimber SA 8400 (8400 WSM) – HD – 0 MOA (Center Spread 3.678″) EGW #81000, LA HD Rem 700, 721, 725, Sauer 100, 101 – 0 MOA – 50100 – Center Spread: 4.485 – EGW, LA LW Rem 700, 721, 725, Sauer 100, 101 0 MOA – 40100 – Center Spread: 4.485 – EGW, LA Mark V (9 lug) HD Weatherby 80700 EGW, LA Ruger American – 0 MOA 7685M Warne, LA Ruger M77 MNT MKII LAUH – RUGM77MK2LAUH – CCOP, LA Sauer 100 / REM 700 M674M Warne, LA X-BOLT BRNT – 0 MOA 7642BB Warne, LA101 0 MOA Lithgow DN, Low 3/8 Wedge / 12.7-13mm on top – Dovetail to Picatinny Adapter – 145mm Long – MNT-ADP83002 CCOP, Magnum Action – CZ 550, BRNO ZKK 602 – 19mm Dovetail – 80920 – HD EGW, Mark VTRR (6 lug Bolt) HD Weatherby O MOA 80710 EGW, Marlin XT-17, XT-22 982, 917 – AC, Mini Action Howa / 1500 – 0 MOA 7656M Warne, Other / I'm Not Sure, Remington 783 LA 0 MOA, Remington 783 SA 0 MOA, Ruger 10-22 NON-Takedown – 46100 EGW, Ruger American 10-22 – PBRUG001 CCOP, SA Ruger M77 MNT MKII LAUH – RUGM77MK2SAUH – CCOP, SA Sako A7 0 MOA Talley, SA Steyr SBS Pro Hunter / Pro Varmint- 0 MOA (Center Spread 2.44″) – 81070 – EGW, SA Winchester 70 – Arctic, SA XPR Winchester 70 – Arctic, Sako 85 XS PH31 NV 0 MOA – Contessa, Sako 90 M/L Suits Bavarian, Hunter – PH109 Contessa, Sako 90 S Suits Bavarian, Hunter – PH108 Contessa, Sako 90 XS Suits Bavarian, Hunter – PH111 Contessa, Sako S20, CZ 600 Saphire / Helix 0 MOA PH70 – Contessa, Savage B Mag, Heavy Barrel, WSM, 0 MOA, BLK – 41970 EWG, Spuhr R-7001 Remington 700 SA 0MIL, Spuhr R-7011 Remington 700 LA 0MIL, SSA X-Bolt 7640M 0 MOA Warne, Tikka T3 / T3X 0 MOA – DN, Tikka T3 0 MOA – 44000 EGW, Tikka T3, T3x 0 MOA 76T3M Warne, UTG 9-11mm -100mm long Dovetail to Picatinny 9 slot, UTG 9-11mm Dovetail to Picatinny 14 slot 50mm cantilever, Warne HS Precision 700 SA Mountain Tech Tactical Rail, 8-40 / 6-48 – Bergara Premier – 7671M, Warne SA Mountain Tech Tactical Rail, Burnt Bronze – Remington – 7673BB, X-BOLT LA 0 MOA, X-BOLT SA 0 MOA |
Zeroing Targets - Thermal + Day + Night Vision 2026
| Zeroing Targets | Pulsar Thermal + Day + Night Vision Zeroing Targets, Hikmicro Thermal + Day + Night Vision Zeroing Targets, Thermal Flashing Tape Roll Zeroing (Best Value) |
|---|