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SureFire

SureFire X300U-B Tactical Weaponlight LED

SureFire X300U-B Tactical Weaponlight LED

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The SureFire X300U-B delivers an intense 1,000-lumen output optimized for human vision with an off-white LED beam. Engineered with a precision Total Internal Reflection (TIR) lens, it creates a far-reaching, high-candela central beam with generous peripheral illumination to maintain critical situational awareness.

Built for extreme tactical conditions, this weaponlight features high-strength aerospace aluminum construction finished with Mil-Spec hard anodizing and a tempered coated window. The integrated aluminum T-slot mounting system provides a rugged, secure attachment to railed handguns and long guns equipped with MIL-STD 1913 rails.

Key Features

Brand SureFire
Model X300U-B
Light Source Type LED
Max Light Output 1,000 lumens
Peak Beam Intensity 11,300 Candela
Beam Distance 698.8 ft
Beam Type Hybrid Beam Pattern
Runtime 1.25 hours
Battery Type 2 x CR123A Lithium (included)
Mounting Type T-Slot Mount (MIL-STD 1913 / Picatinny)
Material Aerospace Aluminum
Finish Mil-Spec Hard Anodized
Water Resistance Waterproof (IPX7)
Switch Type Ambidextrous Push/Toggle
Dimensions 3.76" L x 1.4" W x 1.13" H
Weight 4.16 oz

Highlights

  • Special off-white high-performance LED produces 1,000 lumens, biased in the yellowish-green spectrum optimal for human vision
  • Precision TIR lens creates a smooth, tight beam with enough surround light for peripheral illumination
  • Integral aluminum T-slot mounting system offers rock-solid attachment to railed hand guns and long guns equipped with MIL-STD 1913 rails
  • Construction: High-strength aerospace aluminum with Mil-Spec anodizing; coated, tempered window

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Materials & care

Constructed from high-strength aerospace aluminum with a durable Mil-Spec hard-anodized finish and a coated, tempered optical window. Clean the lens surface with a soft, lint-free cloth and keep mounting hardware free of debris.

Compatibility

Compatible with railed handguns and long guns equipped with universal accessory rails or MIL-STD 1913 (Picatinny) rails via the integral T-slot mount.

Warranty

Standard manufacturer's warranty.

What's included

  • SureFire X300U-B Tactical Weaponlight
  • 2 x CR123A Lithium Batteries

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Frequently asked questions

What is the maximum light output and beam intensity of the X300U-B?

The SureFire X300U-B produces a maximum output of 1,000 lumens with a peak beam intensity of 11,300 candela.

What type of batteries does the weaponlight use, and are they included?

It is powered by 2 CR123A lithium batteries, which are included with the unit.

How does the X300U-B attach to a firearm?

It features an integral aluminum T-slot mounting system designed for solid attachment to railed handguns and long guns equipped with MIL-STD 1913 rails.

What is the runtime on a fresh set of batteries?

The light provides an approximate runtime of 1.25 hours (1 hour and 15 minutes).

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