SureFire X300U-B Ultra WeaponLight
The X300U-B is the thumbscrew-clamp version of SureFire’s 1,000-lumen X300 Ultra. Instead of the quick-detach Lever Latch of the X300U-A, it uses a T-slot thumbscrew clamp that attaches securely to the Universal and Picatinny rails found on most handguns.
- 1,000 lumens, 11,300 candela peak beam intensity through a custom TIR lens
- T-slot thumbscrew clamp for secure attachment to Universal and Picatinny rails
- Integral ambidextrous switch: one-finger momentary-on or constant-on activation
- Accepts optional SureFire DG and XT remote switches
- Aerospace aluminium body, Mil-Spec hard anodized for scratch and corrosion resistance
- IPX7 waterproof to 1 m for 30 minutes
Supplied with two 123A lithium batteries and the thumbscrew clamp. Available in Black (X300U-B) and Tan (X300U-B-TN). The replacement switch is the SureFire Z-XBC.
Specifications:
- Output: 1,000 lumens
- Peak beam intensity: 11,300 cd
- Beam distance: 213 m
- Runtime: 1.25 h
- Battery: two 123A lithium (included)
- Length: 9.55 cm (3.76 in)
- Weight with batteries: 116 g (4.1 oz)
- Bezel diameter: 2.9 cm (1.125 in)
- Attachment: T-slot thumbscrew clamp (Universal / Picatinny rails)
- Switch: ambidextrous push / toggle
- Construction: aluminium, Mil-Spec hard anodized
- Water resistance: IPX7
- Colour: Black / Tan
















































