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Surefire X300U-A Weapon Light, Rail-Lock® Mounting System


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  • Product Description

    The powerful and versatile SureFire X300 Ultra WeaponLight for handguns and long guns features a high-performance LED that generates 600 lumens of stunning white light focused by a Total Internal Reflection (TIR) lens to produce a tight beam with extended reach and significant surround light for peripheral vision. The virtually indestructible and highly efficient LED generates tactical-level light—more than enough to overwhelm an aggressor's dark-adapted vision—for 1.5 hours per set of batteries. 

    Activating the X300 Ultra is done via ambidextrous switching located at the rear of body, providing one-finger control — press the switch on either side for momentary-on activation, flip up or down for constant-on activation. Optional DG grip switches (for pistols) and a pressure activated XT07 tape switch (for long guns) permit the X300 Ultra to be activated without altering your grip on your weapon. 

    The X300 Ultra can be attached to a pistol or a long gun since its Rail-Lock® system permits rapid attachment to and removal from either Universal or Picatinny rails. Its high-strength aerospace aluminum body is Mil-Spec hard anodized for superior toughness and is O-ring and gasket sealed to make it weatherproof. 

    FITS: Handguns and long guns with Picatinny or Universal rails. Adapter mounts available for several non-railed handguns—click here to view them.

    • Virtually indestructible LED regulated to maximize output and runtime
    • Tactical-level output with TIR lens for close- to longer-range applications
    • Quick-detach rail clamp
    • Accepts optional pistol grip and long gun forend switches
    • Weatherproof—O-ring and gasket sealed
    • Construction—High-strength aerospace aluminum with Mil-Spec anodizing; impact-resistant polymer; coated tempered window
    • Includes high-energy 123A batteries with 10-year shelf life


    Max Output -- White Light: 600.0 lumens
    Tactical Runtime**: 1.5 hours
    Length: 3.60 inches
    Bezel Diameter: 1.125 inches
    Weight w/Batteries: 4.0 ounces
    Batteries: 2, 123A (included)
    *Runtime until output drops below 10% of maximum output

  • Product Reviews

  • Product Videos

    • The SureFire X300 Ultra video
      See the powerful, versatile SureFire X300 Ultra WeaponLight in...
    • SureFire Law Enforcement Gear Recommendation video
      This video highlights innovative SureFire products built for l...

    The SureFire X300 Ultra video

    See the powerful, versatile SureFire X300 Ultra WeaponLight in action with real cops, and mounted on pistols and long guns. It pumps out 500 lumens of overwhelming white light to give users more distance from threats and, therefore, more options. The world's finest pistol light just got better. Learn more at
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