SureFire X300 Ultra X300U-B WeaponLight – 1,000 Lumens
The SureFire X300U-B is an ultra-high-output LED WeaponLight built around a precision TIR lens for a concentrated center beam with usable spill. Ambidextrous push/toggle switching supports momentary-on or constant-on activation without changing grip.
This X300U-B variant uses a T-slot thumbscrew clamp designed to lock up securely on Universal and Picatinny accessory rails.