Surefire X300U A LED Light

Item Code: X300U-A

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The powerful and versatile SureFire X300U 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. The Surefire Brand 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.


    • 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
    • Lifetime warranty from Surefire on the Surefire X300U-A


  • Max Output -- White Light: 600 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)
  • Surefire item # X300U-A
  • Surefire SKU # 084871319065


NOTE - This is the "B" version of the Surefire X300 Ultra which means it has a T-Slot Mounting Rail system.  The Surefire X300 Ultra "A" models has the Rail-Lock Mounting System.


Other Surefire Weaponlight items that might interest you: SureFire Desert Tan X300 Ultra LED Handgun/Long Gun WeaponLightSurefire X300 Ultra B LED Handgun Pistol WeaponLight, and Surefire X300V IR LED Weapon Light.


Surefire X300U A LED Light

WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

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