SureFire X400VH: The Ultimate White Light & IR Laser for MasterFire Holsters

• The SureFire X400VH LED White-Light & Infrared WeaponLight is a mission-critical aiming module designed specifically for the MasterFire Rapid Deploy Holster system. It allows you to seamlessly switch between visible white light and stealthy infrared modes for total dominance in low-light and night vision operations. Built with Mil-Spec hard-anodized aluminum, this unit withstands recoil and abuse in the toughest tactical environments.
• Blinds Threats with 350 Lumens of TIR White Light: The specialized Total Internal Reflection (TIR) lens focuses the beam to reach 155 meters with a blinding 13,000 candela intensity. This gives you a tight center spot for long-range identification and enough surround light for situational awareness.
• Night Vision Ready with 120 mW Infrared Illumination: A simple twist of the self-locking bezel engages the infrared mode for use with night vision goggles (NVGs) and an 850 nm infrared laser. This lets you navigate and aim in total darkness without revealing your position to the naked eye.
• Up to 16.75 Hours of Runtime on Two Batteries: Two 123A lithium batteries power the infrared illuminator for over 16 hours or the white light for 2.5 hours. This efficiency ensures your gear is ready to perform through long shifts without frequent battery changes.
• Instant Activation with MasterFire Holster Compatibility: This weapon light is engineered to lock into the MasterFire Rapid Deploy Holster for automatic activation upon drawing. You get immediate light or laser deployment the second your weapon clears the holster, saving you vital reaction time.

SureFire X400VH Vampire Review

What are some common accessories to add to the SureFire X400VH Vampire?

Rapid Deployment & Holster Integration

• SureFire MasterFire Rapid Deploy Holster: The essential mounting platform for the X400VH. This holster system locks onto the weapon light itself rather than the firearm, and features an automatic activation switch that instantly turns on your light or laser as you draw.

Remote Activation Switches

• DG Grip Switch: Designed for handgun applications, this switch contours to your pistol grip to allow instant, one-handed activation of the X400VH using natural pressure from your middle finger.
• XT07 Tape Switch: Adapts the X400VH for rifle or carbine use. This rail-mounted pressure pad provides reliable remote activation, allowing you to control the light and laser without shifting your hand position on the handguard.

Power Management

• 123A Lithium Batteries: The required high-output power source for the X400VH, optimized to handle the drain of dual-spectrum illumination and laser operations.
• SC1 Spare Battery Carrier: A rugged, waterproof, and crush-resistant impact case that securely holds six spare 123A batteries, ensuring you have fresh power available during extended missions.

SureFire X400VH Masterfire WeaponLight Features & Specifications

The SureFire X400VH LED White-Light & Infrared WeaponLight gives you complete dominance over the lighting environment by combining a 350-lumen white light, an infrared illuminator, and an infrared laser into one device. Designed specifically for the MasterFire Rapid Deploy Holster, this system automatically activates your preferred light or laser setting the moment you draw, ensuring you are ready to engage threats instantly in any lighting condition.

Key Features

• MasterFire Holster Integration: The cam-slotted bezel locks into the MasterFire holster, allowing the X400VH Weaponlight SureFire to activate automatically upon drawing for immediate tactical advantage.
• Dual-Spectrum V-Series Head: A simple twist of the self-locking bezel lets you switch the surefire x400vh between 350 lumens of white light and 120 mW of infrared illumination for night vision operations.
• Integrated Infrared Laser: Features a commercially safe (<0.7 mW) 850 nm infrared laser aimed via an adjustment mechanism, providing a precise aiming point visible only through night vision devices.
• Total Internal Reflection (TIR) Lens: Shapes the LED’s light into a focused beam with significant reach (155 meters) while maintaining enough spill for peripheral vision.
• Ambidextrous Switching: Rear toggle switches provide easy momentary-on or constant-on control for both left- and right-handed shooters.

Specifications

• White Light Output: 350 lumens
• Infrared Output: 120 mW
• Laser Output: < 0.7 mW (850 nm Class I)
• Runtime (White Light): 2.5 hours
• Runtime (Infrared): 16.75 hours
• Peak Beam Intensity: 13,000 candela
• Distance: 155 meters
• Weight (w/ batteries): 5.7 oz (162 g)
• Length: 4.0 in (10.1 cm)
• Bezel Diameter: 1.25 in (3.175 cm)
• Batteries: Two 123A lithium (Included)
• Construction: Aluminum
• Finish: Mil-Spec Hard Anodized
• Part Number: X400VH-B-IRC
  

What's in the box of the SureFire X400VH-B-IRC?

• (1) surefire x400vh b irc (White Light + IR Laser/Illuminator)
• (2) SF123A Lithium Batteries
• (1) Universal Cross Member (Marked "U", Pre-installed)
• (1) Picatinny Cross Member (Marked "P")
• (1) 5/64" Hex Wrench (For Laser Zeroing)
• (2) Nylok® Replacement Screws (For Windage/Elevation)
• (1) Laser Certification Label

X400VH MasterFire WeaponLight FAQs

What is the difference between the SureFire X400V and the X400VH? 

The main difference is how they fit in a holster. The X400VH Vampire is built specifically for the MasterFire Rapid Deploy Holster. It has special slots on the front bezel that lock into this holster. The standard X400V does not have these slots. If you want to use the MasterFire holster that turns your light on automatically, you need the "H" model.

Why do I need the IR (Infrared) mode? 

You need IR if you use Night Vision Goggles. The IR light and laser on the x400vh b irc are invisible to the naked eye. This lets you see where you are going and aim your weapon in total darkness without giving away your position to bad guys who do not have night vision.

What is the benefit of the TIR-shaped white light?

The TIR (Total Internal Reflection) lens shapes the beam to give you the best of both worlds. It creates a tight, bright center spot that reaches out to 155 meters for long-range identification. At the same time, it provides a wide "halo" of softer light around the edges so you can still see your surroundings (peripheral vision) without losing focus on your target.

How does the MasterFire holster compatibility work? 

This light locks directly into the MasterFire holster system. When you pull your gun out of the holster, the light or laser turns on instantly and automatically. You do not have to press any buttons. This saves you time in an emergency.

Does this light work with a regular holster?

 It might fit some custom holsters, but it is shaped differently than standard lights. It is designed primarily for the MasterFire system. If you use a standard Kydex or leather holster, this light might not fit properly.

How long do the batteries last?

 It depends on which mode you use. The visible white light lasts for about 2.5 hours. The infrared mode lasts much longer—up to 16.75 hours. It uses two CR123A lithium batteries.

Is the laser visible to the naked eye?

 No. The laser on this model is an Infrared (IR) laser (850 nm). You can only see the dot if you are wearing night vision goggles.

Where can I find the SureFire X400VH for sale? 

You can purchase this system directly from Atomic Defense. We currently have the SureFire X400VH Vampire for sale and ready to ship, ensuring you get authorized gear with full manufacturer support.