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SureFire M640V Vampire Scout Light Pro

SureFire M640V Vampire Scout Light Pro

Manufacturer: SureFire
Category: Weapon Lights & Flashlights
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High Output 350 lumens
High Runtime 2.5 hours
Batteries Two 123A lithium (incl.)
Switching Click tailcap

Defense Systems Full Specifications

1. General Information

Name	SureFire M640V Vampire Scout Light Pro
Manufacturer	SureFire, LLC
Country of Origin	United States
Type / Role	Dual-Spectrum (White/IR) WeaponLight
Introduced / Service Entry	Mid-2010s (Vampire series evolution)
Status	Active Production
Unit Cost	Approximately $449–$499

2. Performance

Maximum Output (Recharge)	N/A (CR123A primary)
Maximum Output (Lithium)	350 lumens (white)
Peak Beam Intensity	11,500 candela
Operational Range (Throw)	214 meters
Endurance (SF18650B)	N/A
Endurance (2x CR123A)	2.5 hours (white); 16.75 hours (IR)
Photonic Barrier Pen	Effective for tactical PID and NVD illumination

3. Dimensions

Length	5.5 in (13.9 cm)
Bezel Diameter	1.06 in (2.7 cm)
Height	Low-profile mount configuration
Maximum Operational Weight	4.15 oz (117.7 g) with batteries

4. Payload & Armament

Illumination Type	White LED / 860 nm IR LED
Mounting Footprint	MIL-STD-1913 Picatinny & M-LOK
Rail Hardware Included	Low-Profile Mount (LPM)
Primary Lens	TIR (Total Internal Reflection)
Switches Supported	Z68 push-button tailcap

5. Propulsion (Power Subsystem)

Primary Source	Two CR123A lithium batteries
Secondary Source (Dual)	N/A
Thermal Regulation	LED regulation for consistent output

6. Communication & Control (Activation)

Control Type	Bezel rotation (white/IR/off); tailcap switch
Circuit Protection	Regulated output
Ingress Protection Rating	IPX7 (waterproof)

7. Operational Use

Primary Users	U.S. Military, Special Operations, Law Enforcement
Combat Proven	Yes (widely fielded)
Notable Deployment	Night operations, CQB, and mounted patrols with NVDs

Our Rating

The overall rating is based on review by our experts

6.8

Accuracy 7 / 10
Performance 7 / 10
Technology 7 / 10
Reliability 6 / 10

PROS

Quick, tool-free white-to-IR mode switching via bezel rotation
Rugged, combat-proven construction with excellent build quality
Versatile low-profile mount fits Picatinny and M-LOK rails
Strong hybrid beam suitable for medium-long range PID
Includes batteries and mounting hardware; made in the USA

CONS

Higher cost compared to single-spectrum tactical lights
White light output (350 lumens) lower than dedicated high-output models
IR performance solid but not the most powerful dedicated illuminator
Limited to CR123A batteries (no native rechargeable option in base model)
ITAR restrictions limit export and availability for non-U.S. users

SureFire M640V Vampire Scout Light Pro: IR/White Tactical WeaponLight

The SureFire M640V Vampire Scout Light Pro is a compact, dual-spectrum weapon-mounted illuminator designed for operators who require seamless transitions between visible and infrared lighting in dynamic tactical environments. Part of SureFire’s renowned Vampire series, it addresses the critical need for flexible illumination on modern battlefields where forces may operate with or without night vision devices (NVDs).

Manufacturer

SureFire, LLC, a U.S.-based company headquartered in Fountain Valley, California, manufactures the M640V. Known for producing high-end tactical lighting and suppressors for military and law enforcement, SureFire emphasizes durability, innovation, and domestic production standards.

Capabilities and Operational Use

This 6-volt Scout Light delivers 350 lumens of high-intensity white light with a hybrid beam pattern optimized for medium- to long-range target identification (PID) and situational awareness. By rotating the bezel, users instantly switch to 120 mW of 860 nm infrared output, invisible to the naked eye but highly effective with NVDs. The proprietary Total Internal Reflection (TIR) lens provides strong reach with balanced spill.

It mounts securely via an integrated low-profile mount (LPM) compatible with MIL-STD-1913 Picatinny and M-LOK rails, allowing optimal positioning alongside other accessories. Activation uses a reliable Z68 click tailcap switch for momentary or constant-on operation. Built from aerospace-grade aluminum with a Mil-Spec hard-anodized finish and IPX7 waterproofing, it withstands harsh combat conditions.

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Price

The unit typically retails around $449–$499, depending on color (Black or Tan) and retailer, positioning it as a premium option for professional users.

In service with U.S. special operations and conventional forces, the M640V enhances close-quarters battle (CQB) and longer-range engagements by providing immediate white light for low-light clearance or IR for stealthy night vision operations. Its compact size preserves weapon maneuverability without adding excessive weight.

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