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Description
Multi-fuel, high-candela long gun light with Jack-Cap® switch redundancy, mounting directly to MIL-STD-1913 or M-LOK® compatible rails.
The ProTac Rail Mount HL-X Pro is a long-range, low-profile, gun-mounted light producing up to 1,000 lumens and 50,000 candela for a 447 m beam distance on high, and 60 lumens/3,100 candela/111 m on low.
Its Jack-Cap® tail cap switch gives operational switch redundancy — both push-button operation and a remote pressure switch port — and batteries are replaced by unplugging the remote and removing the tail cap, with no connected wires. It runs on a Streamlight SL-B26 protected Li-Ion USB rechargeable battery pack or two CR123A lithium batteries.
Key features
- Jack-Cap® switch redundancy — push-button operation or remote pressure switch operation, with tool-free battery access.
- High-candela beam — 50,000 candela and 1,000 lumens for a 447 m beam distance on high.
- TEN-TAP® programming — three user-selectable programs: high/strobe, high only, or low/high.
- Multi-fuel power — runs on an SL-B26 USB rechargeable battery pack or two CR123A lithium batteries.
- Direct rail mount — integrated clamp attaches to MIL-STD-1913 (Picatinny) or M-LOK® compatible rails.
- 2-meter impact resistance — and IP67/IP54 water and weather resistance depending on switch installed.
Typical applications
- Long guns needing long-range, high-candela illumination
- Law enforcement and tactical long-gun platforms
- Users who want push-button and remote switch flexibility with fast battery swaps
Technical specifications
| Light output | High: 1,000 lm / 50,000 cd / 447 m. Low: 60 lm / 3,100 cd / 111 m |
| Run time (CR123A) | High 1.25 hrs; Low 21 hrs; strobe 2.5 hrs |
| Run time (SL-B26) | High 1.75 hrs; Low 24 hrs; strobe 3.5 hrs |
| Switch redundancy | Jack-Cap® tail cap offers both push-button operation and a port for a remote pressure switch |
| Programming | TEN-TAP® – high/strobe, high only, or low/high |
| Battery | Multi-fuel: one Streamlight SL-B26 protected Li-Ion USB rechargeable battery pack, or two CR123A lithium batteries |
| Mounting | Integrated rail clamp attaches to MIL-STD-1913 (Picatinny) rail or M-LOK® compatible rails |
| Body | 6000 series machined aircraft aluminum with anodized finish |
| Lens | Gasket-sealed glass lens |
| Ingress protection | IP67 with push-button switch installed; IP54 with remote pressure switch installed |
| Impact resistance | 2-meter impact resistance tested |
| Length | 13.79 cm (5.43 in) |
| Weight | CR123A 187.1g (6.6 oz) // SL-B26 204.1g (7.2 oz) |
| Colour | Black |
In the box
- 1 × ProTac Rail Mount HL-X Pro - Light Only, black
- Jack Cap
- M-LOK
- 2 × CR123A batteries
Model information
| Brand | Streamlight |
| Model | ProTac Rail Mount HL-X Pro Light Only, Black |
| MPN | 88128 |



