SureFire X300U-B Ultra 1000 Lumen Weapon Light Tan
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The SureFire X300U-B Ultra in this listing is X300U-B-TN, the tan version of SureFire's compact 1,000 lumen weapon light, mounted by a screw clamp.
The B in the part number is the mount, not the lamp. A thumbscrew clamp takes longer to fit than a lever, and in exchange it pulls the light down onto a Picatinny rail hard enough that it stays exactly where it was put.
Output is 1,000 lumens with 11,300 candela of peak beam intensity, which SureFire measure as 213 metres of beam distance, and two CR123A lithium cells run it for approximately 1.25 hours. The body is aerospace aluminium in a mil-spec hard anodised finish, 3.76in (9.55 cm) long with a 1.125in (2.9 cm) bezel, and weighs 4.1 oz (116 g) with batteries in. It is rated IPX7.
Switching is ambidextrous, with momentary and constant-on from either side, and the standard tailcap can be replaced with a remote switch tailcap from the X-series accessory range if you would rather run a pressure pad. Because the mount is a plain Picatinny clamp, it is not limited to pistols: a carbine forend or a railed shotgun takes it just as well. It is not a rechargeable light, so keep a pair of CR123A cells in the kit bag.
Anything with a standard Picatinny accessory rail will take it — a railed pistol dust cover, a carbine forend or a shotgun rail section. The same light in black is the X300U-B Black, and if you would rather index and lock the light on with a lever than tighten a screw, the X300U-A Tan is the Rail-Lock version. Browse all weapon lights.
| Output | 1,000 lumens |
|---|---|
| Peak Beam Intensity | 11,300 candela |
| Beam Distance | Approximately 213 m |
| Battery | Two CR123A lithium cells |
| Runtime | Approximately 1.25 hours |
| Mount | Screw clamp, Picatinny rail |
| Activation | Ambidextrous momentary and constant-on |
| Housing | Aerospace aluminium, mil-spec hard anodised |
| Water Resistance | IPX7 |
| Length | 3.76in (9.55 cm) |
| Bezel Diameter | 1.125in (2.9 cm) |
| Weight | 4.1 oz (116 g) with batteries |
| Finish | Tan |
| MPN | X300U-B-TN |
Tighten the clamp once and the light stays put, on whatever rail you put it on. Order the X300U-B Tan 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, X300U-B in Black or browse all SureFire.
| Brand | SureFire |
|---|---|
| Part no. | X300U-B-TN |
| Category | Weapon Light |
| Barcode | 084871324946 |
£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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