SureFire Infrared Scout Light Pro Weaponlight (Black)

BH #SUM640VBKPRO • MFR #M640V-BK-PRO
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SureFire Infrared Scout Light Pro Weaponlight (Black)
Key Features
  • 350 Lumens White Light, 120mW IR
  • Mounts on Picatinny or M-LOK Rails
  • Swivels for Optimal Positioning
  • Tail Cap On/Off, Bevel Twist for Mode
Equipped with white and stealthy infrared LEDs, the SureFire Infrared Scout Light Pro Weaponlight can be mounted on a Picatinny or M-LOK rail and swivels as needed—toward the rifle to reduce snagging on brush or away from it to make room for other gear. The black Infrared Scout Light Pro delivers 350 lumens of white light through a Total Internal Reflection lens, for a bright beam with long throw and ample surrounding light. Twist the bezel to switch from white to 120mW, 860nm IR light. Power is controlled on a momentary or constant-on basis with a push-button tail cap switch, shrouded to guard against accidental activation. The light's hard-anodized aluminum housing is O-ring sealed against the elements. Power is supplied by one CR123A battery with one hour of runtime.
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SureFire M640 Overview

From Manufacturer

Equipped with white and stealthy infrared LEDs, the SureFire Infrared Scout Light Pro Weaponlight can be mounted on a Picatinny or M-LOK rail and swivels as needed—toward the rifle to reduce snagging on brush or away from it to make room for other gear. The black Infrared Scout Light Pro delivers 350 lumens of white light through a Total Internal Reflection lens, for a bright beam with long throw and ample surrounding light. Twist the bezel to switch from white to 120mW, 860nm IR light. Power is controlled on a momentary or constant-on basis with a push-button tail cap switch, shrouded to guard against accidental activation. The light's hard-anodized aluminum housing is O-ring sealed against the elements. Power is supplied by one CR123A battery with one hour of runtime.

Performance
  • 350-lumen output white LED
  • 120mW inrared light, 860nm
  • Total Internal Reflection (TIR) lens for bright beam with ample surrounding light
Switching
  • On/off: push button
  • Location: tail cap
  • Momentary and constant-on modes
  • Shrouded tail cap helps prevent accidental activation
  • Twist bezel to toggle between white and IR light
Low-Profile Mount
  • Mounts on Picatinny top rails or forend M-LOK rails
  • Pivots as needed: away from weapon to accommodate other gear or closer to weapon for smoother profile with less likelihood of snagging on brush
  • Includes Picatinny and M-LOK cleats
Construction Details
  • Lightweight aluminum housing
  • Scratch- and corrosion-resistant Type III hard-anodized finish
  • O-ring sealed for weather resistance
  • Impact-resistant tempered window
UPC: 084871329309

SureFire M640 Specs

Flashlight
Illumination Source
1x White LED
Lumen Output
White Light: 350 Lumens
Features
No
IR Illuminator
Illumination Source
1x IR LED
Peak Wavelength
860 nm
Peak Output
120 mW
Environmental
Impact Resistance
Not Specified by Manufacturer
Environmental Resistance
Water-Resistant (IPX7)
General
Mounting
Picatinny, M-LOK
Battery
1x CR123A Lithium-Ion
 • White Light: 2.5-Hour Runtime
 • IR Illuminator: 16.8-Hour Runtime
Materials
Aluminum
Dimensions
Head Diameter: 1.1" / 2.79 cm
Length: 5.5" / 13.97 cm
Weight
4.15 oz / 118 g (with Batteries)
Packaging Info
Package Weight
0.6 lb
Box Dimensions (LxWxH)
9.6 x 4.9 x 2"

SureFire M640 Reviews

Surefire Reliability? Not so much...

By Jarrett
Rated 1 out of 5
Date: 2022-07-18

As always B&H photo was great, and shipped quickly! However the item didn't live up to expectations, bought this two months ago or so but hadn't had a chance to actually use it on a firearm until this past weekend. The infrared LED stopped working after less than 10 rounds through a 9mm PCC. White light still works, so not a battery or connector issue, something got loose on just the IR Led is my guess. Unfortunately I am overdue for the B&H trouble free 30 day return so I will contact surefire to see if they will do anything about it and update if they do.

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