The SureFire X300U-B Ultra-High-Output LED Handgun WeaponLight sets the gold standard for tactical illumination, delivering a powerful 1,000-lumen output trusted by law enforcement and military professionals worldwide. Designed for reliability in high-stakes situations, it features a precision Total Internal Reflection (TIR) lens that produces a focused, high-intensity beam with a bright center spot and ample surrounding spill—ideal for both close-quarters and mid-range engagements.
Built with a rugged aerospace aluminum body and finished with Mil-Spec hard anodizing, the X300U-B is engineered to withstand harsh environments. Its secure T-slot thumbscrew clamp ensures a rock-solid fit on both Universal and Picatinny rails, making it compatible with a wide range of handguns. With ambidextrous switching for instant activation and IPX7 waterproof protection, this weapon light delivers dependable performance when it matters most.
Key Features
- High-performance LED delivers 1,000 lumens of bright white light
- Precision TIR lens for focused beam with wide peripheral illumination
- Secure T-slot thumbscrew clamp for firm attachment to handgun rails
- Ambidextrous momentary and constant-on switching for intuitive control
- Compatible with Universal and Picatinny rails on most handguns
- Rugged aerospace aluminum construction with Mil-Spec anodized finish
- IPX7 waterproof rating for reliable use in harsh conditions
- Powered by two 123A lithium batteries (included)
Specifications
| High Output | 1,000 lumens |
| Runtime | 1.25 hours |
| Peak Beam Intensity | 11,300 candela |
| Distance | 213 meters |
| Batteries | Two 123A lithium batteries (included) |
| Switching | Ambidextrous push/toggle |
| Length | 3.76 in (9.55 cm) |
| Construction | Aluminum |
| Finish | Mil-Spec Hard Anodized |
| Weight with Batteries | 4.1 oz (116 g) |
| Bezel Diameter | 1.125 in (2.9 cm) |
| Water Resistance | IPX7 |
| UPC | 084871324939 (Black) / 084871324946 (Tan) |
| NSN | 6230-01-649-7363 (Black) / 1005-01-720-7653 (Tan) |
Compatibility
The SureFire X300U-B is designed to securely mount on:
- Handguns with Universal or Picatinny accessory rails
- Most duty and tactical pistols including Glock, SIG Sauer, and similar platforms
- Holsters designed for SureFire X300-series weapon lights
Why Choose the SureFire X300U-B?
- Trusted by professionals: Widely used by law enforcement and military units worldwide
- Superior beam performance: Delivers long-range visibility with strong central intensity and useful spill
- Secure mounting system: Screw clamp ensures a tight, dependable fit under recoil
- Instant activation: Ambidextrous controls allow quick operation without changing grip
- Built for extreme conditions: Durable, weather-resistant construction ensures long-term reliability
FAQs
What makes the X300U-B different from the X300U-A?
The X300U-B uses a screw-clamp mounting system for a more secure attachment, while the X300U-A uses a quick-attach system.
How bright is the SureFire X300U-B?
It delivers 1,000 lumens with 11,300 candela for strong illumination.
What batteries does it use?
The X300U-B uses two 123A lithium batteries (included).
Is it waterproof?
Yes, it is IPX7-rated and can be submerged up to 1 meter for 30 minutes.
Will it fit my handgun?
It fits most handguns with Universal or Picatinny rails. Always confirm compatibility before purchase.
