Surefire M640DFT Dual Fuel Turbo Scout Light

Surefire M640DFT Dual Fuel Turbo Scout Light - Light - view 1
Surefire M640DFT Dual Fuel Turbo Scout Light - Light - view 2
Surefire M640DFT Dual Fuel Turbo Scout Light - Light - view 3
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SureFire

Overview

The Surefire M640DFT Dual Fuel Turbo Scout Light is a powerful flashlight designed for tactical applications, delivering an impressive output of 1500 lumens. It operates on either two CR123A 3V Lithium batteries or a single 18650 3.6V Li-Ion rechargeable battery, providing versatility in power options. The light is constructed from durable aluminum and is compatible with M-LOK and Picatinny mounting systems, making it easy to integrate into your AR-15 setup. This light is commonly found in builds with a pistol gas system chambered in 5.56 NATO.

Specifications

MPNM640DFT-BK-PRO
MaterialAluminum
Mount TypeM-LOK / Picatinny
Output1500 Lumens
Battery TypeCR123A x2 / 18650
Light TypeFlashlight
ColorBlack

Available Merchants(9)

Prices checked

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Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
In Stock
$339
TS
True Shot Ammo
Flat rate shipping
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In Stock
$374
$369
Brownells logo
Brownells
Free shipping
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In Stock
$377
MidwayUSA logo
MidwayUSA
Free shipping
Shipping Speed
In Stock
$377
Primary Arms logo
Primary Arms
Free shipping
Shipping Speed
In Stock
$377
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$377
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
In Stock
$377
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$378
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
In Stock
$419

August 2026 on GunPartPicker

Surefire M640DFT Dual Fuel Turbo Scout Light ranked #23 of the 91 weapon lights builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #23 of the 204 weapon lights builders have added. Builds with this weapon light are nearly all chambered in 300 Blackout, split between carbine-length (50%) and pistol-length (50%) gas systems, and nearly all AR-15.

Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today all 9 retailers we track have it in stock. It dipped to $296.49 at Ammunition Depot for a stretch in August 2026, well under its usual $368 to $377, so sales do come around. Buying today, the lowest price is $339.49 at Optics Planet, above August's low of $296.49, so a better deal may come back.

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Builds Featuring This Part

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Builds in the community that include the Surefire M640DFT Dual Fuel Turbo Scout Light

BuildPartsTotal
8.2" build build
8.2" build
19$2914.54
Carbine 16" build
Carbine 16"
28$4083.79

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