Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light - Ships From Sports South
Streamlight
$149.99
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Streamlight
Streamlight ProTac Rail Mount HL-X 1000 Lumen Weapon Light - Ships From Sports South
Rail Mount Weapon Light • Picatinny & M-LOK • 1000 Lumens • Tapeswitch Included
STREAMLIGHT PROTAC RAIL MOUNT HL-X 1000 LUMEN WEAPON LIGHT — 88066
1000 Lumens 332m Beam 50,000 Candela Picatinny & M-LOK Tapeswitch Included Dual Fuel IPX7 Waterproof 6000 Series Aluminum
The Streamlight ProTac Rail Mount HL-X is a high-output, rail-mounted weapon light built for rifles, carbines, and shotguns. Delivering 1000 lumens at peak output with a beam reaching 332 meters at 50,000 candela peak intensity, it provides the illumination needed to identify and engage threats at distance in low-light environments. This version includes the remote pressure switch (tapeswitch), tail switch, M-LOK mount, and batteries — everything needed to mount the light and put it to work.
One of the HL-X's most practical advantages is its dual rail compatibility. The integrated rail clamp attaches directly to standard M1913 Picatinny rails, and the included M-LOK mount allows direct installation on M-LOK handguard slots — no separate rail section required. This covers the two most common rail systems found on modern AR-15 and MSR-platform rifles without additional hardware purchases.
Three output modes give you control over light output for different situations. High (1000 lumens) delivers maximum output for target identification and threat interdiction at distance. Low conserves battery and reduces your visual signature when maximum output isn't needed. Strobe provides a disorienting, variable-frequency output for deterrence. The light operates in both constant-on and momentary modes via the included switches.
Power comes from two CR123A lithium batteries (included), delivering 1.25 hours of runtime at high. The dual fuel system also supports the optional Streamlight SL-B26 USB rechargeable battery pack, giving you a path to rechargeable operation without replacing the light body. The housing is built from 6000 series aluminum with a hardcoat anodized finish for impact and corrosion resistance in field conditions.
✔ Best for: Law enforcement, security professionals, and home defense users who need a high-output, rail-mounted weapon light on a rifle, carbine, or shotgun. Compatible with Picatinny and M-LOK platforms without additional adapters. The included tapeswitch is ready to mount without a separate purchase.
✘ Not for: Handguns or pistol-caliber platforms — the HL-X is sized and designed for long guns. Shooters who need rechargeable operation out of the box should note that the SL-B26 battery pack is optional and sold separately.
ℹ Note: Waterproof rating differs by switch: IPX7 (fully waterproof) when using the standard tail switch; IPX4 (water resistant) when using the remote pressure switch. Plan your switch configuration based on the environment in which the light will be used.
Key Features
- 1000-Lumen White LED — 332-Meter Beam — Peak output of 1000 lumens with 50,000 candela of beam intensity projects a focused, high-intensity beam to 332 meters. This level of output is sufficient to identify and assess targets at realistic long-gun engagement distances in complete darkness, providing both flood illumination for close-in work and throw for distance identification.
- Picatinny & M-LOK Dual Rail Compatibility — The integrated rail clamp mounts directly to M1913 Picatinny rails. The included M-LOK mount provides a direct attachment solution for M-LOK handguard slots without requiring a separate Picatinny rail section. This dual compatibility covers the two most common rail formats on modern AR-15 and MSR rifles, making the HL-X a versatile choice across platforms.
- High / Low / Strobe Modes — Constant & Momentary Operation — Three output modes cover the full range of operational needs: High for maximum output during threat identification, Low for battery conservation and reduced visual signature, and Strobe for disorienting variable-frequency output. Both the tail switch and remote tapeswitch operate in constant-on and momentary (press-and-hold) modes, giving you tactically appropriate control regardless of switch configuration.
- Tapeswitch Included — Ready to Mount — The remote pressure switch (tapeswitch) is included in the box — no separate purchase required. The tapeswitch allows intuitive, grip-position activation of the light without breaking a firing grip or repositioning the hand. Retaining clips for cable management are also included.
- Dual Fuel System — CR123A or Rechargeable — Ships with two CR123A lithium batteries and runs for 1.25 hours at high output. The dual fuel design also accepts the optional Streamlight SL-B26 USB rechargeable battery pack as a direct drop-in replacement, giving you a path to rechargeable operation as a future upgrade without swapping lights.
- 6000 Series Aluminum with Hardcoat Anodize — The light body is machined from 6000 series aluminum — a high-strength alloy used throughout the firearms and tactical equipment industry. The hardcoat anodized finish provides a harder, thicker surface treatment than standard anodize, improving abrasion resistance and durability in demanding use environments.
- IPX7 Waterproof (Standard Switch) — With the tail switch installed, the HL-X carries an IPX7 waterproof rating, tested to withstand temporary immersion in water to 1 meter depth for 30 minutes. Note: the IPX rating drops to IPX4 (water resistant, not waterproof) when the remote pressure switch is connected.
- Complete Accessory Package — The 88066 ships with everything needed to install and operate the light: remote pressure switch, tail switch, remote retaining clips for tapeswitch cable management, M-LOK mount, and two CR123A batteries. No additional purchases are required to mount and use the light on most Picatinny or M-LOK equipped rifles.
What's in the Box
The Streamlight ProTac Rail Mount HL-X (88066) includes all hardware and accessories needed for immediate installation on Picatinny and M-LOK platforms.
| Item | Description | Notes |
|---|---|---|
| Weapon Light | Streamlight ProTac Rail Mount HL-X | 1000-lumen white LED, 6000 series aluminum, hardcoat anodized |
| Remote Pressure Switch | Tapeswitch / Remote Pressure Switch | Allows grip-position activation; IPX4 water resistant when connected |
| Tail Switch | Standard Button Tail Switch | IPX7 waterproof when used instead of remote switch |
| Retaining Clips | Remote Retaining Clips | For cable management of remote pressure switch cord |
| M-LOK Mount | M-LOK Rail Mount Adapter | Direct M-LOK slot attachment; no Picatinny rail section required |
| Batteries | CR123A 3V Lithium (Qty: 2) | Included; 1.25-hour runtime at high (1000 lumens) |
Compatibility & Installation Notes
✔ Compatible With
- M1913 Picatinny rail systems (integrated clamp, no adapter needed)
- M-LOK handguard slots (included M-LOK mount, no rail section needed)
- AR-15, AR-10, and MSR-platform rifles and carbines
- Shotguns with Picatinny or M-LOK rail sections
- CR123A batteries (included and widely available)
- Optional Streamlight SL-B26 USB rechargeable battery (sold separately)
✘ Not Included / Verify Before Purchasing
- Not designed for pistol or handgun use — sized for long guns
- KeyMod rail slots not directly compatible — requires a Picatinny rail section adapter
- SL-B26 rechargeable battery sold separately — not included
- Remote pressure switch reduces waterproof rating from IPX7 to IPX4
- Rail space requirements should be verified against your handguard layout before purchasing
Shop Related
Frequently Asked Questions
What's included in the box with the Streamlight ProTac Rail Mount HL-X (88066)?
The 88066 includes the ProTac Rail Mount HL-X light body, a remote pressure switch (tapeswitch), a standard tail switch, remote retaining clips for tapeswitch cable management, an M-LOK mount for direct M-LOK handguard installation, and two CR123A batteries. You have everything needed to mount and operate the light on a Picatinny or M-LOK equipped rifle immediately out of the box.
Does the HL-X mount directly to M-LOK handguards, or do I need a Picatinny rail section?
It mounts directly to M-LOK slots using the included M-LOK mount — no separate Picatinny rail section is needed. For Picatinny rails, the light body's integrated clamp attaches directly to the rail. KeyMod slots are not natively supported and require a Picatinny rail section adapter for compatibility.
What are the operating modes, and how do the switches work?
The HL-X offers three output modes: High (1000 lumens), Low, and Strobe. Both the standard tail switch and the remote pressure switch operate in constant-on mode (press once to activate, press again to deactivate) and momentary mode (press and hold for light, release to turn off). The remote tapeswitch allows activation from a natural firing grip position without repositioning the hand to the light body. The tail switch provides a more traditional activation point at the rear of the light.
What is the dual fuel system, and can I use rechargeable batteries?
The dual fuel system means the HL-X accepts two different power sources: the included two CR123A 3V lithium batteries, or the optional Streamlight SL-B26 USB rechargeable battery pack (sold separately). The SL-B26 is a direct drop-in replacement for the two CR123A cells, so upgrading to rechargeable operation requires only purchasing the SL-B26 — no modification to the light body. With CR123A batteries, runtime at high is 1.25 hours.
Why does the waterproof rating change depending on which switch I use?
With the standard tail switch installed, the light body is fully sealed and rated IPX7 waterproof — tested to withstand temporary immersion to 1 meter depth for 30 minutes. When the remote pressure switch is connected, the external cable creates a pathway that reduces the overall water resistance to IPX4 — protected against water splashing from any direction, but not fully immersion-proof. For use in wet or submersion-risk environments, use the tail switch configuration to maintain the full IPX7 rating.
How long do the batteries last at 1000 lumens?
Running at full 1000-lumen output on two CR123A batteries, runtime is 1.25 hours. Using the Low mode will significantly extend battery life. CR123A batteries are widely available and inexpensive, making field replacement straightforward. For extended-use applications where recharging is available, the optional SL-B26 rechargeable battery provides the same output with USB recharging capability.
Is the ProTac Rail Mount HL-X suitable for home defense use?
Yes. The HL-X is explicitly designed for law enforcement, security professionals, and home defense users who need a high-output light on a long gun. The 1000-lumen output is more than sufficient for threat identification in any indoor environment. The included tapeswitch allows intuitive, one-handed activation without breaking your firing grip. The light's reliability and IPX7 rating (with tail switch) ensure consistent performance when it matters. Ensure the light is properly zeroed to your expected engagement distances and practice activation as part of your regular training.
- material:
- Aluminum
- type:
- Weapon Light
- output:
- 60/1000 Lumens
- bulb type:
- LED
- oal:
- 5.43"
- weight:
- 6.40 oz
- battery size:
- CR123A/SL-B26 Rechargeable Li-Ion
- proofs:
- Waterproof
- color:
- Black Anodized
- for series:
- Any with Rail
- rechargeable:
- Yes
- filter color:
- White
- switch type:
- Push Button Tail Cap/Remote Pressure Switch
- Fulfillment Source:
- Trusted Distribution Partner
