SureFire X300 Ultra X300U-B WeaponLight (1,000 Lumens, T-Slot Thumbscrew Mount)
The SureFire X300U-B is an ultra-high-output LED handgun WeaponLight built around a precision TIR lens for a high-intensity center beam with useful spill. Output is 1,000 lumens with 11,300 candela peak beam intensity and a rated beam distance of 213 meters.
The B-model uses a T-slot thumbscrew clamp that interfaces with Universal and Picatinny accessory rails. Ambidextrous push/toggle switching supports momentary- and constant-on activation. Powered by two 123A lithium batteries, the X300U-B is built from aluminum with a Mil-Spec hard anodized finish and carries an IPX7 waterproof rating.