Illuminating the Path: A Deep Dive into the SureFire M640DFBKPRO Dual Fuel Scout Light Pro for Tactical Excellence

For discerning individuals who demand uncompromising performance in low-light environments—whether in tactical operations, competitive shooting, or personal defense—the ability to positively identify a target and maintain situational awareness is paramount. The SureFire M640DFBKPRO Dual Fuel Scout Light Pro stands as a pinnacle of weapon-mounted illumination, meticulously engineered to address these critical needs. This advanced tactical light is a direct answer to the question: "What is the ultimate weapon light for a professional-grade rifle or carbine?" Designed for those who face the darkness head-on, it integrates SureFire's legendary reliability with groundbreaking versatility.

Unrivaled Brightness & Dual-Fuel Versatility: Powering Your Advantage

At the core of the SureFire M640DFBKPRO's exceptional capability is its powerful, recoil-proof LED emitter. When the stakes are high, you need every lumen at your disposal. This light offers impressive output options: a staggering 1,200 lumens when powered by two CR123A lithium batteries or an even more intense 1,500 lumens when utilizing the included SF18650B rechargeable lithium-ion battery. This "Dual Fuel" capability is a game-changer, providing unprecedented flexibility for users who operate in diverse conditions and demand adaptable power solutions.

Why is Dual Fuel Technology a Must-Have for a Weapon Light?

• Operational Flexibility: Users can choose between readily available CR123A batteries for emergencies or the high-performance, rechargeable 18650 for regular training and extended missions. This eliminates dependency on a single power source.
• Optimized Performance: The 18650 battery unlocks the M640DFBKPRO's maximum 1,500-lumen output, delivering superior brightness and extended throw for identifying threats at greater distances.
• Cost Efficiency & Sustainability: The rechargeable 18650 battery reduces long-term operational costs and environmental impact compared to disposable CR123A cells for everyday use.
• Field Adaptability: In situations where charging an 18650 might not be feasible, the ability to quickly swap to CR123A batteries ensures continuous operation, critical for law enforcement, military, and serious civilian users.

The M640DFBKPRO’s sophisticated Total Internal Reflection (TIR) lens further optimizes this immense power. Instead of a simple flood or narrow spotlight, the TIR lens creates a meticulously engineered hybrid beam pattern. This means you get both excellent long-range throw for target identification at significant distances (up to 250 meters) and ample surrounding light (spill) to maintain peripheral vision and situational awareness in close quarters. Whether you're clearing a dark building or surveying a perimeter, this beam pattern ensures no detail is missed, making it ideal for close- to longer-range applications where adaptability is key.

Revolutionary Low-Profile Mount (LPM): Precision Placement for Any Platform

One of the most innovative features of the M640DFBKPRO is SureFire's new Low-Profile Mount (LPM). This mount is a testament to SureFire's commitment to user-centric design, directly addressing the common challenge of optimal weapon light placement. Traditional mounts often dictate a fixed position, limiting how users can configure their accessories. The LPM breaks this mold.

How Does the Low-Profile Mount (LPM) Enhance Weapon Ergonomics?

• Unprecedented Versatility: The LPM allows users to precisely optimize the light's position relative to the weapon's rail. This means you can tuck the light closer to the bore, minimize snag points, or position it exactly where your support hand or pressure switch naturally falls.
• Universal Compatibility: The rugged and reliable LPM easily and securely attaches to any MIL-STD-1913 Picatinny rail, the industry standard for tactical accessories. Furthermore, it includes a dedicated M-LOK mount, ensuring seamless integration with modern modular rail systems. This dual compatibility makes the M640DFBKPRO a universal solution for virtually any rifle or carbine setup.
• Streamlined Profile: By enabling closer mounting, the LPM contributes to a more streamlined weapon profile, reducing bulk and improving maneuverability in tight spaces or when transitioning between shooting positions.
• Enhanced Control & Access: Optimized placement directly translates to faster and more intuitive access to the light's controls, whether you're using the integrated push-button tailcap or a remote pressure switch (sold separately).

For operators, competitive shooters, and even home defense enthusiasts, the ability to customize their weapon setup is crucial. The LPM empowers users to achieve peak ergonomic efficiency, ensuring that the SureFire M640DFBKPRO integrates flawlessly with their shooting style and other accessories like laser aiming devices or grips.

Built for Battle: Unyielding Durability and Reliability

When it comes to tactical gear, durability is not a luxury—it's a necessity. The SureFire M640DFBKPRO Dual Fuel Scout Light Pro is not just bright; it's virtually indestructible. Constructed from lightweight, high-strength aerospace aluminum, its body is designed to withstand the harshest operational conditions and the intense recoil of modern firearms.

What Makes the M640DFBKPRO an Exceptionally Durable Weapon Light?

• Aerospace-Grade Aluminum Construction: This material provides an ideal balance of strength and weight, ensuring the light adds minimal bulk to the weapon while offering maximum resilience.
• Mil-Spec Hard-Anodized Finish: The black anodized finish isn't just for aesthetics; it's a Mil-Spec (Military Specification) hard-anodizing that provides superior resistance to abrasion, corrosion, and extreme temperatures. This finish ensures the light maintains its integrity and appearance even after prolonged exposure to the elements and rigorous use.
• O-Ring Sealed for Environmental Protection: The M640DFBKPRO is meticulously O-ring sealed throughout its construction, creating an impervious barrier against dust, dirt, and moisture. This meticulous sealing contributes to its IPX7 waterproof rating.
• IPX7 Waterproof Rating: This rating signifies that the light can be submerged in up to 1 meter of water for 30 minutes without adverse effects, guaranteeing reliable performance in rain, snow, or accidental submersion.
• Recoil-Proof Design: Every component, from the LED emitter to the battery contacts, is engineered to withstand the repeated shock and vibration generated by firearm discharge, ensuring consistent illumination when you need it most.

This robust construction ensures that the M640DFBKPRO isn't just a light; it's a critical piece of mission-essential equipment that will perform flawlessly when deployed in the most demanding environments, from arid deserts to humid jungles.

Tailored Controls and Seamless Integration

The SureFire M640DFBKPRO offers versatile control options to suit individual preferences and tactical situations. It comes standard with a Z68 tailcap, providing both momentary-on (press and hold) and constant-on (press and click) functionality via a push-button switch. This intuitive control allows for rapid light deployment and discreet operation. For those who prefer remote activation, the tailcap is compatible with SureFire's wide range of tape switches, allowing for activation from a more ergonomic position on the weapon's forend. This adaptability ensures that the light integrates seamlessly into any user's operational methodology.

Who Needs the SureFire M640DFBKPRO? Essential Applications

The SureFire M640DFBKPRO is more than just a flashlight; it's a force multiplier for anyone operating a long gun in low-light conditions.

When is the SureFire M640DFBKPRO the Right Choice?

• Law Enforcement & Military Operations: For officers and soldiers, positive target identification and situational awareness in urban environments, building clearings, or rural patrols are non-negotiable. The M640DFBKPRO's reliability, high output, and versatile mounting options make it an indispensable tool for maintaining safety and effectiveness.
• Home Defense & Self-Defense: In a home invasion scenario, rapid identification of potential threats without relying on ambient light is crucial. The M640DFBKPRO provides the blinding output needed to disorient an intruder and illuminate a target, giving a homeowner a critical advantage.
• Competitive Shooting (e.g., 3-Gun): While not always explicitly used during stages, having a reliable weapon light for setup, breakdown, and low-light practice scenarios can be beneficial. Its robust design stands up to the rigors of competition.
• Hunters (where legal and ethical): For specific hunting applications where weapon-mounted illumination is permissible and necessary for ethical shot placement in low light (e.g., hog hunting), the M640DFBKPRO offers unparalleled clarity and range.
• Tactical Training & Preparedness: For serious enthusiasts who train regularly, investing in equipment that mirrors professional-grade standards ensures that training translates directly to real-world readiness. The M640DFBKPRO offers the same performance relied upon by elite units worldwide.

The SureFire Advantage: A Legacy of Excellence

SureFire has long been synonymous with superior tactical illumination. Their "combat-proven" philosophy means that every product, including the M640DFBKPRO, is rigorously tested and refined based on feedback from real-world operators. When you choose a SureFire product, you're not just buying a light; you're investing in decades of innovation, uncompromising quality control, and a commitment to saving lives. The M640DFBKPRO embodies this legacy, offering unmatched performance, durability, and user-centric design that sets it apart from the competition. Its inclusion of both Picatinny and M-LOK mounting solutions, along with the revolutionary LPM, highlights SureFire's dedication to meeting the evolving needs of modern firearm platforms.

This weapon light is available from trusted retailers like DEGuns.com, ensuring you receive an authentic SureFire product backed by their industry-leading reputation. For those who demand the best, the SureFire M640DFBKPRO Dual Fuel Scout Light Pro is the definitive choice for illuminating the path forward in any low-light engagement. It’s an essential upgrade for any serious long gun user seeking to maximize their tactical advantage and ensure positive target identification in the dark.

SureFire M640DFBKPRO Dual Fuel Scout Light Pro Specifications

Feature	Detail
Brand	SureFire
Series	Scout Light Pro
Model	Dual Fuel
Color	Black Anodized
Overall Length	5.56 inches
Hand Orientation	Ambidextrous
Material	Aerospace-Grade Aluminum
Firearm Type	Rifle / Carbine
Mount Type	Picatinny Rail / M-LOK
Run Time	1.25 - 1.5 Hours
Output	1,200 / 1,500 Lumens
Switch Type	Push Button / Tail Cap
Battery Size	CR123A / 18650 Li-ion
Proofs	IPX7 Waterproof
Modes	Constant / Momentary
Power Source	Battery
Bulb Type	White LED
Head Diameter	1.125 inches
Includes	Scout Light Pro Dual Fuel, Z68 Tailcap, Picatinny Mount, M-LOK Mount, Battery
Weight	5.50 ounces
Range	250 Meters
Filter Color	White
SKU	136917
UPC	084871329262
MPN	M640DFBKPRO