500 Lumen White LED, 635nm Class IIIb Red Laser, 1.125" Bezel Diameter

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The X400-A-RD Ultra LED Flashlight and Red Laser Sight from SureFire combines a 500-lumen, single-output, LED light with a 635nm Class IIIb red aiming laser for Picatinny or universal rail mounts. The light features SureFire's Total Internal Reflection (TIR) lens that produces a pre-focused beam with a tight centre cone of bright light, and a dimmer ring on the periphery to help maintain situational awareness. An ambidextrous toggle switch controls the momentary and constant-on modes. The selector switch, located behind the laser, switches the output modes and features a lock-out function to prohibit accidental activation during storage or when strict light discipline must be maintained. The red laser is easy to see and can be readily differentiated from other aiming lasers used by devices like Tasers. Designed for durability, this system features a weatherproof o-ring and gasket sealed Mil-Spec anodised aluminium housing.

Key Features

Light Performance
  • 500 lumen output
  • White LED emitter
  • Pre-focused Total Internal Reflection (TIR) lens produces tight beam with bright centre and dimmer peripheral ring
Laser Performance
  • Class IIIb red
  • 635nm peak wavelength
  • 5mW peak output
  • Toggle Switch: Location: Back of light Type: Multi-directional toggle Push switch forward for momentary-on Push switch up or down for constant-on Ambidextrous switch for use by all shooters
  • Selector switch: Location: Behind laser emitter Function: Output and lock-out control Rotating positions controls output modes Lock-out function to prevent accidental activation Output modes: white-light only, laser only, or flashlight and laser
Construction Details
  • 1.125" diameter bezel
  • Aluminium alloy housing
  • Type III Mil-Spec hard anodised finish
  • O-ring and gasket sealed for water resistance
  • Anti-reflective coated, tempered glass lens window
  • Rail-Lock system for quick attachment/detachment
  • Picatinny and Universal-rail mountable for pistols or rifles
  • Accepts optional pistol grip and long gun forend switches
  • Adapter mounts available for several non-rail equipped handguns


Illumination SourceWhite LED
Maximum Output500 lumen
Beam Intensity16,000 candela
Bezel Diameter1.125"
TypeClass IIIb red
Output Power5 mW
Peak Wavelength635 nm
Mount TypePicatinny and Universal rails
Battery2 x 123A
Runtime#####LED light: 1.5 hr#####

#####Laser: 8 hr#####
Dimensions3.6 x 1.9 x 1.5" (9.1 x 4.8 x 3.8 cm)
Weight4.9 oz (139 g), with batteries
SureFire X400-A-RD Ultra LED Flashlight and Red Laser Sight
RM Product #: