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X400® Ultra — Red Laser

LED Handgun or Long Gun WeaponLight with Laser


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Max Output -- White Light600.0lumens
Max Output -- Laser<5mW25 hours
Bezel Diameter1.125inches
Weight w/Batteries4.9ounces
Batteries2123A  (included)
** Runtime (at highest setting for multiple-output
    lights) until output drops below 50 lumens.


X400U-A-RD 084871321211
The SureFire X400 Ultra WeaponLight 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.

Optional DG grip switches (for pistols) permit the X400 Ultra to be activated without altering your grip on your weapon.

The versatile X400 Ultra can be attached to a pistol or a long gun since its T-Lock mounting system permits rapid attachment/detachment from either Universal or Picatinny rails. Its high-strength aerospace aluminum body is Mil-Spec hard anodized for superior toughness and corrosion resistance and is O-ring and gasket sealed to keep out dust and moisture.
  • 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


    Laser Warning
    This device emits laser radiation that can injure the eyes.
    -- Never look into the laser emitter, either directly or indirectly         via reflection
    -- Never aim the laser beam at eyes, either directly or indirectly     via reflection
    -- Never view the beam with optical instruments (telescopes,       binoculars, etc.
    -- Never open or modify the laser housing

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Stronger Laser Requested

I love the little light, but the laser is a wimp. For $599, there ought to be a stronger laser. Look at the civilian-legal DBAL I2. Thanks.

Reviewed by Brad from TN (Posted on 10/23/17)

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Excellent product and customer service

My mounting screw had snapped off. Finally got around to calling and the tech support employee knew exactly what I was talking about. He shipped a new mounting system free of charge. Great service and support. Surefire is the only light I will use for now on.

Reviewed by Justin B (Posted on 5/17/17)

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Great Laser/Light

Been running the X400 Ultra for over a year in a Safariland 6304 holster and love it. Looking at getting the X400V IRC for the M4.

Reviewed by WVBartMan (Posted on 12/30/15)

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SureFire X400 Ultra - Red Laser

I'm very Happy with the X400 Ultra - Red Laser
Worth every penny great job SureFire

Reviewed by Clark S (Posted on 8/17/15)

Product up for T&E

Surefire has done it again with a fantastic light - AND - a visible laser.

I purchased this light for my Gen4 Glock 21. It is very bright and the laser works well. I have yet to arrange a night shoot so that I can verify zero and test the unit under realistic conditions. I will do so in the near future.

I expect to run this gun/light combination in a drop-thigh holster. I was told by Blade Tech's people that they do not make a WRS holster for this gun/light combination. Safariland had a similar answer for me. However, I WAS able to find a holster maker who would handle this rig, and I suggest you check out High Speed Gear at The product code is 60LH00HY, a "Drop Holster for Tactical Lights/Gear.

The holster is in shipment now, and I'll give it a good work-out when it arrives.

Reviewed by Bob Shimizu (Posted on 10/28/14)


Blade Tech makes a holster:


Reviewed by GMS (Posted on 8/3/14)

Great product, again NO HOLSTER!

Got this as a gift. Wanted to find a basket weave style duty holster with retention and there is not one in existence or production. Have absolutely no idea what to do with this great product.

Reviewed by LB (Posted on 7/8/14)

Great product, no holster!

After purchasing the X400 light/laser combo, I found it to meet all expectations of the products capabilities. The light is VERY bright and outshines any of the similar products on the market. The laser is also more bright and is easily seen and acquired visually with the light on.
My one complaint is that no company is making a compatible duty holster for this product. I was informed by Surefire, that SafariLand is making one and was suppose to be out any time. However SafariLand told me that they do not have any plans as of yet to produce a compatible holster for this new generation of light. I've also checked with several other holster companies and so far, no company is making a holster to accept the new X400 series light.
I wish I had known this information before purchasing.

Reviewed by W Schafer (Posted on 1/27/14)

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