SureFire X300U-A Ultra 1000 Lumen Weapon Light Black
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The SureFire X300U-A Ultra is a compact LED weapon light in black, part number X300U-A, producing 1000 lumens from two CR123A lithium cells.
A TIR lens does the work: it collects almost all of the emitter's output into a tight 11,300 candela beam with enough spill left around it to see what is either side of the thing you are looking at.
The body is aerospace aluminium, approximately 3.76 in (9.5 cm) long and 4.0 oz (113 g) with cells fitted, and rated IPX7 — waterproof to 1 metre for 30 minutes. Beam distance is approximately 213 metres and runtime approximately 1.25 hours on a fresh pair of cells. Switching is ambidextrous, with a toggle either side of the mount.
It attaches through SureFire's Rail-Lock System, which indexes onto a Universal or Picatinny rail and locks with a lever, so it goes on and comes off in seconds without a screwdriver — that is the difference between the A and the B, which uses a screw clamp instead. On a railed pistol, a carbine forend or a railed shotgun it does the same job. It is a primary-cell light, so there is nothing to recharge; keep spare CR123As with it.
Any host with a standard Picatinny or Universal accessory rail will take it — a railed pistol dust cover, a carbine forend or a shotgun rail section. The same light is stocked in tan, the screw-clamp version is the X300U-B, and for a much tighter beam there is the X300T-A Turbo. Browse all weapon lights.
| Output | 1000 lumens |
|---|---|
| Peak Beam Intensity | 11,300 candela |
| Beam Distance | Approximately 213 m |
| Runtime | Approximately 1.25 hours |
| Battery | Two CR123A lithium cells |
| Mount | Rail-Lock System (Universal / Picatinny) |
| Material | Aerospace aluminium |
| Water Resistance | IPX7, 1 metre for 30 minutes |
| Length | Approximately 3.76 in (9.5 cm) |
| Weight | Approximately 4.0 oz (113 g) |
| Finish | Black |
| MPN | X300U-A |
The default compact weapon light for a reason: lever on, lever off, 1000 lumens either way. Order the X300U-A 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-A in Tan or browse all SureFire.
| Brand | SureFire |
|---|---|
| Part no. | X300U-A |
| Category | Weapon Light |
| Barcode | 084871319065 |
£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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