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Questions & Answers
Does this light come with the "duel fuel" rechargeable battery? Expert Answer

No, this SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light will include (2) CR123A Lithium batteries.

by Ethan, Gear Expert, January 16, 2023
Which pressure switch is compatible with is light? Expert Answer

The SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light is compatible with the ST07, SR07-D-IT, and SR07 Tape switches with the use of the SureFire DS00 or UE tailcaps.

by Ethan, Gear Expert, February 23, 2023
Customer Reviews
Helpful Positive Review My Favorite Light by Jason, March 23, 2024
This is the second M640U I've bought because I like the first one quite a bit. I think I can safely say this is my favorite rifle light. It's extremely bright and the hinge piece attaching it to the hand guard is really well designed (simple and wo...
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1/1 found this helpful
Helpful Positive Review Surefire Scout Pro by Rob, Verified Owner, May 14, 2024
couldnt decide between this or the turbo for home defense. after reviews, found this one to to be wider and closer ranges vs the turbo that has a concentrated beam. dont know all that much about flood and candela but oof im not sure why i never bough...
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1/1 found this helpful
Helpful Positive Review Way better than Inforce by Bobby, Verified Owner, August 22, 2021
Don't settle for 6, 3,9, or 12 o'clock. Offset your light for efficiency and comfort. I've hike 20+ kilometers with a non-flush light and got bruising all down my leg. Not worth it. Not worth the snags either. This will solve all your problems.
2/2 found this helpful
Helpful Positive Review Bright and reliable by Chris Nissen, Verified Owner, July 14, 2020
This light is definitely on the expensive side. But it lives up to the price. It’s extremely bright, has nice battery life, and (for its length) is pretty sleek. When paired with the Sr07 Rail Tape Switch, this light is second to none. It throws ligh...
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7/7 found this helpful
Helpful Positive Review Surefire VS. Modlite by Daniel, Verified Owner, March 4, 2022
I have both versions of the Modlite, (OKW & PLVH2) and now the Surefire. These lights really do not compare well to eachother, each has its own role to play. The OKW will illuminate a tree 300yds away with ease but not as good as illuminating a wide ...
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2/2 found this helpful
Most Recent Reviews Swivel does not lock by Old Guy, Verified Owner, July 6, 2025
It is a good light, and I have no complaints about it. The MLOK mount on the other hand is horrible. The swivel on the mount is supposed to be adjustable up or down and can be locked in place by turning the screw. On mine no matter how much I tighten...
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Read All 33 Reviews
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Product Info for SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light

Gear up for tactical missions or late-night hunts with the SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light. These Rifle Weapon Lights by SureFire include a low-profile mount that securely attaches to your weapon while taking up minimal space. For reliable activation, the SureFire M640U Scout Weapon Light Pro features a Z68 momentary/constant-on push-button. Grab the SureFire M640U Scout Light Pro Gun Light to experience cutting-edge illumination technology that will guide you in the dark.image

WARNING: California`s Proposition 65

Specifications for SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light:

Manufacturer: SureFire
Light Output: 1000 lumens, 11300 candela
Bulb Type: LED
Battery Type: CR123A
Beam Color: White
Gun Model: Universal
Beam Distance: 213 m
Diameter: 1.125 in
Length: 5.5 in
Weight: 4.4 oz
Bezel Diameter: 1.125 in
Battery Life: 1.25 hours
Weather Resistance: Waterproof
Finish: Mil-spec Hard Anodized
Battery Quantity: 2
Condition: New
Gun Type: Rifle
Mount Type: M-LOK
Fabric/Material: Aluminum
Attachment Type: Picatinny

Features of SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light

  • Virtually indestructible ultra-high-output LED generates 1,000 lumens of blinding light; produces tactical-level light for 1.25 hours on two 123A batteries
  • Versatile Low-Profile Mount (LPM) allows the user to optimize the light's position relative to the rail
  • TIR lens shapes versatile beam with enough reach and surround light for indoor/CQB and outdoor/medium-to-long-range operations
  • Mil-Spec hard-anodized aluminum body and tempered window make it light rugged, durable and combat ready
  • Activation via Z68 momentary/constant-on push-button switching with protective shroud
  • O-ring seals keep out moisture; the Scout Light Pro is IPX7 rated

Package Contents:

  • SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light
  • Mounting hardware for MIL-STD-1913 and M-LOK rails

SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light Orderable Models

List of Orderable Models

SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light, Black, M640U-BK-PRO , MPN: M640U-BK-PRO , UPC: 084871329286 , Code: FS-FLW-SL4-M640U-BK-PRO
SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light, Tan, M640U-TN-PRO , MPN: M640U-TN-PRO , UPC: 084871329293 , Code: FS-FLW-SL4-M640U-TN-PRO

SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light Unavailable & Discontinued Models

List of Unorderable Models

USED, SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light, Tan, M640U-TN-PRO , MPN: M640U-TN-PRO-EDEMO , Code: FS-FLW-SL4-M640U-TN-PRO-EDEMO-IN-C
USED, SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light, Tan, M640U-TN-PRO , MPN: M640U-TN-PRO-EDEMO , Code: FS-FLW-SL4-M640U-TN-PRO-EDEMO-RE-B
USED, SureFire M640U Scout Light Pro 1000 Lumen Ultra High Output LED Weapon Light, Black, M640U-BK-PRO , MPN: M640U-BK-PRO-EDEMO , Code: FS-FLW-SL4-M640U-BK-PRO-EDEMO-IN-C
DEMO, SureFire M640U Scout Light Pro 2 x CR123A LED Weapon Light, 1000 Lumens, Swivel, Picatinny, w/ Z68 Click ON/OFF Tailcap, Anodized, Black, M640U-BK-PRO , MPN: M640U-BK-PRO-DEMO , Code: FS-FLW-SL4-M640U-BK-PRO-DEMO
DEMO, SureFire M640U Scout Light Pro 2 x CR123A LED Weapon Light, 1000 Lumens, Swivel, Picatinny, w/ Z68 Click ON/OFF Tailcap, Anodized, Tan, M640U-TN-PRO , MPN: M640U-TN-PRO-DEMO , Code: FS-FLW-SL4-M640U-TN-PRO-DEMO
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