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SureFire

SureFire Weaponlight LED - X300U-B 1,000 Lumens 11,300 Candela - Black | X300U-B T-Slot Mount Hybrid Beam LED w/ Ambidextrous Push/Toggle Switch - Mil-Spec Hard Anodized IPX7 - Black

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Aug 31 – Sep 4
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Color: Black


Mounting Type: T-Slot Mount


Set name: Hybrid Beam


Features

  • 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

Description

The powerful, virtually indestructible X300 Ultra WeaponLight was primarily designed for handguns but is also excellent for long guns and mounts securely to MIL-STD 1913 rail-equipped rifles via its newly enhanced T-slot mounting system. This top-selling WeaponLight features a high-performance LED that generates 600 lumens of stunning white light that’s focused by a Total Internal Reflection (TIR) lens to produce a high-intensity beam with extended range yet it provides significant surround light for peripheral vision in close quarters. The highly efficient virtually failure-proof LED generates tactical-level light-ideal for close- to long-range target identification-for 1.5 hours per set of batteries. Activating the X300 Ultra is done via intuitive, ambidextrous switches-now wider and shorter for improved ergonomics-at the rear of the body. Simply press the switch on either side for momentary-on activation or flip up or down for constant-on activation. Optional DG grip switches (for handguns) and pressure-activated XT tape switches (for long guns) permit the X300 Ultra to be activated remotely. The X300 Ultra can be securely attached to a handgun or a long gun via its new and improved T-slot mounting system. Universal and Picatinny crossbar wedges are included for simple, foolproof installation. Its high-strength aerospace aluminum body-including the mounting system-is Mil-Spec hard anodized for superior toughness and it is O-ring sealed, making it weatherproof. FITS: The new T-slot mounting system fits most railed handguns (and rail-equipped long guns) but adapter mounts are available for some non-railed handguns.

Special Feature: 11,300 Candela, 213 Meters Distance, Durable, Hybrid Beam Pattern


Color: Black


Power Source: Battery Powered


Light Source Type: LED


Material: Aluminum


Additional Features: 11,300 Candela, 213 Meters Distance, Durable, Hybrid Beam Pattern


Power Source: Battery Powered


Light Source Type: LED


White Brightness: 600 lumens


Voltage: 3 volts


Battery Type: Lithium Metal


Number of Batteries: 2 CR123A batteries required. (included)


Water Resistance Level: Waterproof


Light Output Maximum: 1000 lumens


Battery Description: Lithium


Light Source Wattage: 7.5 watts


Mounting Type: T-Slot Mount


Battery Life: 1.25 hours


Light Source Special Features: Focused and peripheral lighting


Runtime: 1 hour


Number of Light Sources: 1


Wattage: 4.65 watt-hours


Item Dimensions D x W x H: 3.76"D x 1.4"W x 1.13"H


Item Weight: 4.16 ounces


Item Dimensions L x W x H: 1.12"L x 1.12"W x 3.76"H


Material Type: Aluminum


Included Components: Battery, Flashlight


Brand Name: SureFire


Recommended Uses For Product: Tactical


Global Trade Identification Number: 39


Manufacturer: SureFire


UPC: 084871324939


Manufacturer Warranty Description: Standard manufacturer's warranty.


Unit Count: 1 Count


Item Type Name: Holster


Model Number: X300U-B


Set Name: Hybrid Beam


Manufacturer Part Number: X300U-B


Color: Black


Style Name: T-Slot Mount


Finish Types: Mil-Spec Hard Anodized


Shape: Cylindrical, Tactical


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 31 – Sep 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • It's a SureFire, so you already know it nearly indestructible and awesome.
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
It's a SureFire, so you already know it nearly indestructible and awesome. The price is crazy high, but how much is a reliable parachute worth when the plane's on fire? What happens if it doesn't work when you need it? Fits on Glock or 1913 Pic rail with included cross-bars for each. Fastens with a thumb screw which can be tightened with a penny or Tasco chamber flag. Rule 4 of firearms: Be certain of your target and what's beyond it. If it's dark, how are you going to do that without a weapon light? If you plan to hold a $5 flashlight from Wal-Mart, will you really have 6 hands in order to hold a gun, reload, call 9-1-1, carry a child, open a door AND hang onto a flashlight? Fact: Evil prefer darkness. This take away that advantage in a instant. Yes..yes...it's not easy to carry a pistol with a light, for a number of reasons. However, every rifle should have a white light and every pistol that is not normally carried on your person should have one, too. I can hear the keyboards clicking already. "But won't this light give away my position?". Yes, it will. But so will your gunfire a split second after the light goes on. Also, 1) In all likelihood, the adversary already knows where you are and is preparing to engage you while you are still trying to identify/assess the threat in darkness. 2) This light is crazy-bright and will blind anyone at close range for a few seconds 3) you don't need to (and shouldn't) leave it on all the time you are facing possible threats. It can be turned on just before firing in order to absolutely confirm your target is a threat 4) get some training on how to use it properly. BTW, you still need a hand-light light, because it's not polite/smart to use a gun as a flashlight unless you may need to shoot what is illuminated. So, don't use a weapon-mounted light to look for a puppy in the park or a kitten in a neighbor's tree. Last point, you can put this in your pocket and use it as a hand-held, but don't think you are going to attach it to something shooty during the 4 second bullet swap in which you might need it. ... show more
Reviewed in the United States on January 4, 2018 by Amazon Customer
    • Great quality !
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
Originally thought batteries were missing but they were inside the light! Light works great and is incredibly bright! Fits perfect on my glock19x and matches my OWB perfectly. Love the light, highly recommend!
Reviewed in the United States on September 30, 2025 by Amazon Customer
    • Great bright light fits perfectly on Gen 5 Glocks/doesn’t fit Sig Mk 25 without some filing
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
Was very impressed by the perfect fit on a Gen 5 Glock 19. Ambidextrous switch is a brilliant way to quickly turn on or off. Go outside on a dark night and flip this on...you will be amazed at the light it throws. You might want to evaluate your expected usage, and decide if you really want this much light in a house. If you are transitioning from a dark room to this light, while it is likely blinding on the business end, the reflection from light walls and ceiling is going to be bright right back at you. Beautifully made. Update: The perfect fit on the Gen 5 Glock 19 is due to the 'universal' cross member being used. If you have a picatinny rail, such as with a HK VP9, you will need to used the other cross member, which is included in the box...you saved it...right? Update 2 for Sig Mk 25: Even if you drive out the 4 pins and remove the spacer, there is a ridge that still interferes with a correct fit. If you jam it in and crank it down as many frustrated users have, the front curve of the trigger guard is going to take much of the recoil. You can take a file, and curve this ridge down to relieve the interference . ... show more
Reviewed in the United States on July 24, 2018 by Placeholder
    • Great light, overpriced
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
Light is awesome, works great… BUT it’s not 150 dollars better than my tlr1 or any other options I. The 120-200 price range
Reviewed in the United States on June 10, 2025 by Jordan
    • Good price for good product
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
Good price
Reviewed in the United States on December 7, 2025 by Mitchell
    • Gold standard for backup/indoor weapon lights.
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
Good amount of distance, while still offering significant amounts of flood for enclosed spaces. Significantly brighter than a TLR-7A.
Reviewed in the United States on May 30, 2026 by Quade Thomas
    • league standard
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
is what it is and it gets the job done. big but bright.
Reviewed in the United States on June 9, 2025 by ironclad
    • Rendimiento y calidad insuperables
Color: Black Style: T-Slot Mount Pattern Name: WeaponLight
La SureFire X300 Ultra es una linterna para arma excepcional. La salida es potente y el lente TIR entrega un haz enfocado con buen spill para mantener el blanco iluminado sin perder visibilidad periférica. El cuerpo es robusto y se siente de primera clase; la montura se fija firme al riel y no se mueve ni con uso intensivo. Los interruptores ambidiestros son rápidos y fáciles de accionar, perfectos para cambios de mano o en tensión. La duración de batería es muy buena para el nivel de lumen que ofrece y la linterna resiste condiciones adversas sin fallar. Si buscas una weaponlight fiable y profesional, esta cumple y supera expectativas. ... show more
Reviewed in the United States on October 14, 2025 by Luis Alfonso Rivera Alvarado

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