Streamlight ProTac Rail Mount VIR Pro USB Weapon Light & IR Illuminator 1100 Lumens 40,000 Candela
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The Streamlight ProTac Rail Mount VIR Pro USB, part 88139, is a dual-spectrum long gun light: 1100 lumens of white light and a 940 nm infrared illuminator in one body, supplied with the SL-B26 rechargeable pack.
White light for everything the eye can use, infrared for everything it cannot. The selector sits in the head, with a cut-off that stops white light being triggered by accident while you are working under night vision.
White output runs 1100 lumens at 40,000 candela for 400 metres on high, 540 lumens at 19,000 candela for 276 metres on medium and 120 lumens at 4,200 candela for 130 metres on low. Infrared is 2,300 mW on high and 600 mW on low at 940 nm. The body is 6000-series anodised aluminium behind a BOROFLOAT lens, 5.65 in (14.35 cm) long and 8.8 oz with the SL-B26 fitted, rated IPX7 with the push-button tailcap and IPX4 with the remote switch in place.
Power is flexible: the SL-B26 USB rechargeable pack and cord are in the box, and two CR123A lithium cells will run it instead. White runtimes are 2 hours, 3.75 hours and 14 hours on the pack, or 1.5, 2.75 and 11 hours on primaries; infrared gives 2 hours high and 9 hours low on the pack, 1.25 and 7.25 hours on CR123A. The Jack-Cap tailcap takes either the push-button or the supplied remote pressure switch, and the light mounts to Picatinny or, with the included mount, to M-LOK. The infrared side is only of use with night vision, since 940 nm is invisible to the naked eye.
It clamps to a MIL-STD-1913 rail section and the supplied hardware adapts it to an M-LOK handguard, so most modern rifle forends will take it directly. Our M-LOK versus Picatinny guide is worth a read if your handguard has both. If you would rather run primaries only, the same light is sold as the CR123A version, part 88138, and for white light alone see the ProTac HL-X Pro USB.
| White output | 1100 / 540 / 120 lumens |
|---|---|
| Peak beam intensity | 40,000 / 19,000 / 4,200 candela |
| Beam distance | 400 m / 276 m / 130 m |
| Infrared output | 2,300 mW high / 600 mW low at 940 nm |
| White runtime | 2 h / 3.75 h / 14 h (SL-B26); 1.5 h / 2.75 h / 11 h (CR123A) |
| Infrared runtime | 2 h high / 9 h low (SL-B26); 1.25 h high / 7.25 h low (CR123A) |
| Battery | SL-B26 USB rechargeable pack included, or two CR123A lithium cells |
| Mount | Picatinny (MIL-STD-1913) / M-LOK |
| Lens | BOROFLOAT |
| Body | 6000-series anodised aluminium |
| Length / weight | 5.65 in (14.35 cm) / 8.8 oz with SL-B26, 8.2 oz with CR123A |
| Sealing | IPX7 with push-button; IPX4 with remote switch |
| MPN | 88139 |
Two spectrums, two fuels and a switch for each hand. Order the ProTac VIR Pro USB today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: Weapon Lights, ProTac Rail Mount 2 or browse all Streamlight
| Brand | Streamlight |
|---|---|
| Part no. | 88139 |
| Category | Weapon Light |
| Barcode | 080926881396 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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