The Ultimate Illumination for Your Rifle: SureFire M640DFT Pro WeaponLight

For serious long gun users, whether you're a tactical professional, a dedicated hunter, or someone prioritizing home defense, superior illumination is non-negotiable. Low-light conditions present the greatest challenges for target identification, situational awareness, and effective engagement. This is precisely where the SureFire M640DFT Pro WeaponLight stands out as an indispensable tool, engineered to give you a decisive advantage when every lumen and candela counts.

Why a High-Performance Weapon Light is Essential for Your Rifle

In dynamic environments, rapid and accurate target identification can be the difference between success and failure. Traditional handheld flashlights are cumbersome and diminish your ability to maintain a stable firing grip. A purpose-built weapon light like the SureFire M640DFT Pro integrates seamlessly with your rifle, providing instantaneous, hands-free illumination precisely where you need it.

Consider these critical scenarios where robust rifle-mounted illumination makes all the difference:

• Law Enforcement & Military Operations: Navigating dark structures, identifying potential threats in low-light environments, and clearing rooms. The ability to pierce through photonic barriers (e.g., car window tint, smoke, fog) is paramount.
• Home Defense: Swiftly and safely identifying intruders in your home without silhouetting yourself. Knowing what you're shooting at is vital for responsible self-defense.
• Night Hunting: Illuminating targets at extended ranges, ensuring ethical shot placement, and tracking game in challenging nocturnal conditions.
• Tactical Training & Competition: Practicing low-light drills, improving target acquisition speed, and gaining an edge in competitive shooting scenarios that simulate real-world conditions.

The SureFire M640DFT Pro is meticulously designed to excel in these demanding applications, providing a reliable beam that cuts through darkness and provides unparalleled clarity.

Unpacking the SureFire M640DFT Pro: Features Designed for Dominance

At the heart of the M640DFT Pro's exceptional performance is its combination of cutting-edge technology and SureFire's legendary build quality. This isn't just a flashlight; it's a precision instrument built for critical situations.

Turbo Series Performance: Max Candela for Maximum Reach

The "Turbo" designation in the M640DFT Pro signifies a significant leap in weapon light technology. While many lights focus solely on lumens (total light output), the Turbo series prioritizes candela. Candela measures beam intensity and "throw"—how far and how effectively the light can illuminate a distant object or penetrate challenging visual obstacles.

• 71,000 Candela: This extraordinary candela output allows the M640DFT Pro to deliver a highly concentrated, tightly focused beam. What does this mean for the user?
  • Unrivaled Reach: Clearly illuminate targets hundreds of yards away, making it ideal for long-range engagements with rifles.
  • Photonic Barrier Penetration: The intense beam cuts through window tint, smoke, fog, and other atmospheric obscurants that would render lesser lights useless. This is crucial for positive identification in complex environments.
  • Reduced Backsplash: The focused beam minimizes light reflected back from close objects, providing a clearer sight picture and reducing "white-out" effect indoors.
  • Superior Target Identification: Distinguish intricate details on a target at distance, such as clothing, facial features, or potential weapons, enhancing decision-making capabilities.

While boasting an impressive 550 lumens, it's the 71,000 candela that truly sets the M640DFT Pro apart, transforming your rifle into an undisputed low-light precision tool.

Dual Fuel Versatility: Power When You Need It

One of the most practical and user-friendly features of the M640DFT Pro is its innovative Dual Fuel capability. This design allows you to power the light with multiple battery types, ensuring you're never left in the dark, regardless of your power source availability.

• Rechargeable 18350/18650 Li-ion Batteries: For regular training, range use, and sustained operations, rechargeable batteries offer cost-effectiveness and convenience. The M640DFT Pro is optimized to maximize performance with these high-capacity options, providing consistent output and longer runtimes.
• CR123A Lithium Primary Batteries: When rechargeable options aren't feasible, or for critical deployments where shelf life and immediate availability are paramount, standard CR123A batteries provide a reliable alternative. This flexibility ensures your light is always operational, whether you're in the field or at home.

This Dual Fuel advantage means less worry about battery availability and more focus on your mission. It's a testament to SureFire's understanding of real-world operational demands.

Low-Profile Mount (LPM): Unprecedented Versatility

The new Low-Profile Mount (LPM) system is a game-changer for weapon light integration. Unlike fixed mounts, the LPM allows users to fine-tune the light's position relative to the rail and other attached accessories.

• Optimized Positioning: The LPM provides both a swivel and an offset capability, enabling you to tuck the light tighter to the rifle's handguard. This reduces snag points, improves rifle balance, and allows for cleaner setups, especially when running IR lasers, pressure switches, or other rail-mounted equipment.
• Universal Compatibility: The SureFire M640DFT Pro comes equipped with the LPM, which securely mounts to both popular M-Lok and Picatinny rail systems. This eliminates the need for multiple mounting solutions, making it a truly universal fit for almost any modern rifle platform.
• Tool-Less Adjustment (within limits): While initial installation requires tools, the ability to adjust the light's angle and offset slightly can be done quickly, allowing for quick adaptation to different shooting styles or accessory configurations.

This modular mounting solution ensures that your weapon light integrates seamlessly, regardless of your rifle's specific setup or your personal preference.

Built SureFire Tough: Durability in Extreme Conditions

SureFire has built its reputation on manufacturing lights that can withstand the harshest combat and tactical environments. The M640DFT Pro upholds this legacy with its robust construction.

• Aerospace-Grade Aluminum: The body is precision-machined from high-strength aerospace aluminum, providing an exceptional strength-to-weight ratio.
• Mil-Spec Hard-Anodized Finish: A military-specification hard-anodized coating provides superior resistance to abrasion, corrosion, and extreme temperatures, ensuring the light maintains its integrity even after prolonged exposure to the elements and rough handling.
• O-Ring Sealed: Every SureFire light is meticulously O-ring sealed to provide exceptional water resistance, allowing reliable operation in wet weather, submerged conditions, or accidental splashes.
• Impact Resistant: Designed to shrug off the impacts and vibrations inherent to recoil and rough tactical use, the M640DFT Pro remains fully functional when it matters most.

When you invest in a SureFire, you're investing in a product that has been combat-proven and trusted by professionals worldwide.

Integrating the M640DFT Pro into Your Rifle Setup

Mounting the SureFire M640DFT Pro is straightforward thanks to its versatile LPM.

1. Identify Rail Type: Determine if your rifle's handguard uses M-Lok slots or a Picatinny (MIL-STD-1913) rail system. The LPM is designed to accommodate both.
2. Choose Optimal Position: Experiment with different mounting points along your handguard. Consider ergonomics for activating the tail cap switch or remote pressure pad (sold separately), avoiding interference with other accessories, and minimizing shadow cast by your barrel or suppressor.
3. Secure Attachment: Use the included hardware to securely fasten the LPM to your chosen rail section. Ensure a tight fit to prevent movement under recoil.
4. Battery Insertion: Insert your preferred Dual Fuel batteries (18350, 18650, or CR123A) according to the polarity indicators.
5. Function Check: Test the light to ensure proper operation.

For maximizing your tactical advantage, consider pairing the M640DFT Pro with a SureFire remote pressure switch (such as the SureFire DS07 or SR07, available separately at DEGuns). This allows for momentary or constant-on activation without breaking your grip or reaching for the tail cap, ensuring seamless operation during dynamic engagements.

FAQs: Addressing Your Top Questions About the SureFire M640DFT Pro

Q: What's the main difference between lumens and candela, and why does the M640DFT Pro emphasize candela?

A: Lumens measure the total light output, like the overall brightness of a room. Candela measures the intensity of the beam in a specific direction, essentially how focused and far-reaching the light is. The M640DFT Pro's high candela (71,000) means its 550 lumens are concentrated into a powerful, penetrating beam that can illuminate distant targets and cut through visual obstacles more effectively than a light with high lumens but low candela.

Q: Can I use any 18650 or 18350 battery with the Dual Fuel system?

A: While the M640DFT Pro is compatible with these battery types, SureFire recommends high-quality, protected rechargeable lithium-ion batteries specifically designed for high-drain devices like weapon lights. Using low-quality or unprotected batteries can lead to reduced performance or potential safety issues. Always source your batteries from reputable suppliers like DEGuns.

Q: Is the M640DFT Pro truly universal for both M-Lok and Picatinny rails?

A: Yes, absolutely. The innovative Low-Profile Mount (LPM) on the M640DFT Pro is engineered for direct attachment to both M-Lok slots and standard Picatinny (MIL-STD-1913) rails, providing exceptional mounting versatility right out of the box.

Q: How durable is the SureFire M640DFT Pro in extreme conditions?

A: SureFire lights are built to professional-grade standards. The M640DFT Pro features aerospace-grade aluminum construction, a Mil-Spec hard-anodized finish for corrosion and abrasion resistance, and is O-ring sealed for water resistance. It's designed and tested to withstand the shock of recoil, drops, and exposure to harsh environmental elements, ensuring reliability in the most demanding scenarios.

Q: What kind of runtime can I expect from the M640DFT Pro?

A: The runtime varies depending on the battery type used. With recommended rechargeable lithium-ion batteries (18650 or 18350), you can expect over 1 hour of sustained high-output performance. CR123A batteries will also provide reliable runtime, optimized for critical applications where primary battery power is preferred.

The SureFire Advantage: Unmatched Quality and Performance

Choosing a SureFire weapon light means investing in a legacy of excellence. For decades, SureFire has been the leading innovator in tactical illumination, supplying elite military units, law enforcement agencies, and discerning civilians with the most robust and effective lighting solutions available. Their commitment to rigorous testing, precision engineering, and uncompromising quality ensures that every product, including the M640DFT Pro, delivers unparalleled performance when it matters most.

When you demand the best illumination for your rifle—light that offers extreme reach, robust durability, and flexible power options—the SureFire M640DFT Pro WeaponLight is the definitive choice. Equip your long gun with this advanced tactical tool and gain a commanding advantage in any low-light situation. The SureFire M640DFT Pro is available now at DEGuns.com, your trusted source for premium firearm accessories.

SureFire M640DFT Pro WeaponLight Specifications

Feature	Detail
Brand	SureFire
Series	Scout Light Pro
Model	M640DFT
Output	550 Lumens
Beam Intensity	71,000 Candela
Bulb Type	White LED
Dual Fuel	Yes
Battery Type	CR123A / 18650 Li-ion / 18350 Li-ion
Run Time	1+ Hours (dependent on battery)
Mount Type	Low-Profile Mount (LPM)
Rail Compatibility	Picatinny Rail / M-Lok
Firearm Type	Rifle
Material	Aerospace-Grade Aluminum
Finish	Mil-Spec Hard Anodized Tan
OAL (Overall Length)	5.90 inches
Head Diameter	1.25 inches
Weight	6.11 ounces
UPC	084871331586