SUREFIRE X400 Ultra Red Laser Led WeaponLight Laser
Other products by SUREFIRE ®
Item #: X400U-A-RD


SUREFIRE X400 Ultra Red Laser Led WeaponLight  Laser

Here at the Montana Army Navy Store with No Sales Tax and Free Shipping on Purchases over $100 the SUREFIRE X400 Ultra Red Laser Led WeaponLight Laser integrates stunningly powerful white-light illumination and bright red laser aiming capabilities in one compact rail-mountable package, an extremely effective combination for close- to medium-range engagements in law enforcement, military, and self-defense applications.

A high-performance LED generates 600 lumens of brilliant white light that is focused by a Total Internal Reflection (TIR) lens to produce a tight beam with extended reach and significant surround light for peripheral vision. The X400 Ultra produces tactical-level light—enough to overwhelm an aggressor's dark-adapted vision—for 1.75 hours per set of batteries.

The X400 Ultra’s 5-milliwatt laser sight, located below the primary light, emits a high-visibility red (635 nM) beam. The laser's aiming adjustment mechanism uses Nylok® screws that won't back out from the effects of recoil, which means it rarely needs to be re-zeroed.

Activating the X400 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. A separate switch at the rear of the X400 Ultra allows you to (1) activate white light illumination only, (2) activate white light illumination simultaneously with the laser sight, (3) activate the laser sight only, or (4) disable the entire X400 Ultra. See illustration at upper left.


  • Max Output -- White Light 600.0 lumens
  • Tactical Runtime** 1.75    hours
  • Max Output -- Laser    5.0    mW
  • Length    3.6    inches
  • Bezel Diameter    1.125    inches
  • Weight w/Batteries    4.9    ounces
  • Batteries    2 123A  (included)



  • Virtually indestructible 600-lumen LED regulated to maximize output and runtime
  • High-visibility 5 mW red laser sight
  • TIR lens for close- to medium-range applications
  • Quick-detach rail clamp with adapters for Picatinny and Universal rails
  • Accepts optional pistol grip and long gun forend switches
  • Construction—High-strength aerospace aluminum with Mil-Spec anodizing; impact-resistant polymer; coated tempered window
  • Weatherproof—O-ring and gasket sealed
  • Includes high-energy 123A batteries with 10-year shelf life


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