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SureFire X300U-B Weapon Light – Tan
The SureFire X300U-B Ultra is a high-output LED handgun weapon light in Tan — SureFire's best-selling handgun WeaponLight. It produces 1,000 lumens through a precision TIR lens and attaches securely to Universal (Glock-style) and Picatinny accessory rails on a wide variety of handguns.
1,000-Lumen TIR Beam
The custom TIR lens produces a far-reaching, high-intensity beam with a larger center spot plus surrounding spill for situational awareness — 11,300 candela peak intensity and a 213 m beam distance, for close- to medium-range engagements. Runtime is 1.25 hours on two 123A lithium batteries.
T-Slot Thumbscrew Mount (B-Model)
The B-model T-slot thumbscrew clamp attaches securely to Universal and Picatinny rails — distinct from the A-model's Rail-Lock lever system.
Ambidextrous Switching
Integral push/toggle switches give momentary-on (press) and constant-on (toggle). The light accepts optional pressure-activated DG and XT remote switches.
Construction
The body is high-strength aerospace aluminum, Mil-Spec hard anodized for scratch and corrosion resistance, and sealed against weather. The light is IPX7 rated — waterproof to 1 meter for 30 minutes.
Product Specifications
| Manufacturer | SureFire |
| Model | X300U-B Ultra |
| Manufacturer Part Number | X300U-B-TN |
| UPC | 084871324946 |
| Product Type | Weapon Light |
| Output | 1,000 Lumens |
| Candela | 11,300 |
| Beam Distance | 213 m |
| Runtime | 1.25 Hours |
| Battery | 2 123A Lithium (Included) |
| Switching | Ambidextrous Push/Toggle, Momentary and Constant-On |
| Mount / Fit | T-Slot Thumbscrew Clamp; Universal and Picatinny Rails |
| Material | Aerospace Aluminum, Mil-Spec Hard Anodized |
| Length | 3.76 in |
| Weight | 4.1 oz (with Batteries) |
| Bezel Diameter | 1.125 in |
| Ingress Protection | IPX7 |
| Color | Tan |
What's Included
- X300U-B Ultra weapon light
- Mounting hardware
- 2 123A batteries
Product identification: SureFire X300U-B Ultra weapon light, manufacturer part number X300U-B-TN, UPC 084871324946. Specifications reflect the supplied product information.
- RG Product Type:
- Accessory
- Lumens:
- 1000
- Color:
- Tan
- Material:
- Aluminum
- Fits:
- Picatinny/Universal
- MPN:
- X300U-B-TN
- UPC:
- 084871324946