SureFire X300U-B Ultra Weapon Light – 1000 Lumens – Thumbscrew Clamp



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SKU: X300U-B Categories: ,


The powerful SureFire X300 Ultra WeaponLight is virtually indestructible. Designed for handguns, yet effective for use on long guns, this light mounts securely to any MIL-STD 1913 rail.

Featuring a high-performance LED that generates 1,000 lumens of stunning white light focused by a Total Internal Reflection (TIR) lens. The highly efficient, virtually failure-proof LED generates tactical-level light ideal for close to long-range target identification.

Activate the X300 Ultra via intuitive, ambidextrous switches, now wider and shorter for improved ergonomics. 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 body and mounting system are constructed from high-strength aerospace aluminum, MIL-SPEC hardcoat anodized for superior toughness. O-ring and gasket sealed to keep out dust and moisture.


  • High-performance LED
  • TIR lens
  • Picatinny rail mount
  • O-ring and gasket sealed
  • High-strength aerospace aluminum
  • MIL-SPEC anodizing
  • Coated, tempered window
  • Accepts optional DG pistol grip and XT remote long gun tape switches
  • Powered by (2) CR123A batteries
  • Length: 3.60″
  • Bezel diameter: 1.125″
  • Weight: 4 oz


  • White Light
  • Constant-on – 1,000 lumens – 1.25 hours
Battery Type – CR123A 3V Lithium x2
Brand – SureFire
Finish – Hardcoat Anodized
Manufacturer – Surefire
Material – Aluminum
Modes – Constant, Momentary
Output – 1000 Lumens
Platform – M1913 Picatinny
Weight – 4 Oz

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