PFN 640 V2 – Multifunctional Thermal Imaging Device
Product Description
Building on the success of the proven PFN, this upgraded model offers:
60 Hz refresh rate
Sensitivity of <15 mK (NETD)
Compared to the first version (<40 mK), sensitivity has been improved by 166%, allowing detection of even the smallest temperature differences.
The powerful 12 µm VOx detector delivers:
Clear, detailed images
Reliable performance even in poor weather conditions
Applications
The device can be used as:
Handheld device
Clip-on attachment
Helmet-mounted system
Important Notice for Customers
The PFN640+ / PFN 640 V2 is delivered without an integrated reticle
A reticle can be programmed upon request, subject to legal approval
With a valid hunting license and without a programmed reticle:
Mounting on Picatinny / weapon systems is permitted
Use as a clip-on device on a firearm is allowed
⚠ Regulations may vary internationally and must be observed.
Key Technology Features
12 µm sensor (640×480) for high detail resolution
60 Hz refresh rate for smooth image display
Reliable performance in:
Fog
Rain
Snow
Extreme temperatures (-45°C to +55°C)
Viewing Modes
Handheld mode
Clip-on mode / helmet mode (identical)
→ Image is scaled to 1x magnification in clip-on mode
Additional features:
Tilt sensor
Digital compass
Operation
The device features three control buttons:
Power Button
Turn on (short press)
Shutdown menu (long press)
Sensor calibration (short press during operation)
Menu Button
Open options menu (short press)
Switch between handheld and clip-on mode (long press)
Image Button
Take photo (short press)
Record video (long press)
Interfaces & Connectivity
7-pin Fischer connector
USB/BNC combination cable included:
USB: data transfer
BNC: video output (e.g. to mini DVR)
Wi-Fi connectivity for:
Smartphones
Laptops
Tablets
Power Supply
1x 18650 battery
Operating time: ≥ 5 hours
Optics & Performance
Digital zoom: 2x and 4x
Lens: 25 mm
→ Suitable for both short and long-range observation
Dimensions & Height
Device height with Picatinny rail: 46.5 mm
Future Upgrade
Wilcox flip-to-side mount (in development)
→ Enables use as a clip-on or standalone sighting system
Scope of Delivery
Spring-loaded Picatinny mount
Padded carry case
2x eyecups (handheld / clip-on)
Helmet mount (VAS shroud compatible)
Charging and data cable
USB power adapter (US)
Battery charger
Battery caps for 18650 & 18700
Adapter for IEA bridge / NT940
Microfiber cloth
Tool kit
Screws:
Flat tip (helmet mount)
Triangular tip (weapon mount)
Technical Specifications – PFN 640 V2
Sensor: 640×480 / 12 µm
Lens: 25 mm
Detection range (person): 600 m
Detection range (vehicle): 1070 m
NETD: ≤ 15 mK
Refresh rate: 60 Hz
Field of View: 17.5° × 13.1°
Operating time: ≥ 5 h
Battery: 18650 × 1
Display: 1440 × 1080 (0.39")
Eye relief: 15 – 35 mm
Diopter range: -5 to +2
Interfaces: Picatinny, helmet mount interface
Weight: ≤ 320 g
Dimensions: 105 × 65 × 48 mm
Protection class: IP67
Operating temperature: -40°C to +55°C
Storage temperature: -55°C to +70°C
The HK MR308 A3 Slim Line HKey is the civilian semi-automatic version of a modern precision and designated marksman rifle chambered in the powerful .308 Winchester caliber. Developed on the basis of proven military technology, the MR308 combines outstanding reliability with excellent accuracy and ergonomic handling.
The proven HK gas piston operating system minimizes fouling inside the action and ensures reliable function even under demanding conditions. Thanks to its fully ambidextrous controls, the MR308 is equally suitable for right- and left-handed shooters.
The modern Slim-Line handguard with HKey interfaces allows easy attachment of accessories such as bipods, lights, or grips while maintaining a slim and ergonomic profile. The free-floating, hard chrome-lined precision barrel ensures excellent shooting performance and long service life.
Features
• Semi-automatic rifle chambered in .308 Winchester
• Proven HK gas piston operating system for maximum reliability
• Fully ambidextrous controls
• Slim-Line handguard with HKey interfaces
• Free-floating precision barrel
• Hard chrome-lined barrel for increased durability
• Ergonomic adjustable stock
• Designed for precision and long-range sport shooting
• Reliable performance under extreme conditions
• Compatible with a wide range of accessories
Technical Specifications
General
Caliber
.308 Win
Operating Principle
Gas-operated
System
HK MR308 A3
Handguard
Slim-Line HKey
⚠️ Magazines with capacities greater than 10 rounds are only available to persons legally authorized to purchase them.
Important Information Regarding Firearm Orders
Please note the following:
• Firearm orders can only be placed through our online shop
• During the checkout process, please upload the following documents:
Valid hunting license (Jagdschein)
Firearms ownership card (WBK), including pre-entry if applicable
NWR IDs (see master data sheet)
Valid ID card or passport
All documents must be:
• Valid
• Complete (front and back side)
• Clearly legible
After your order has been placed and the item is available, you will receive a proforma invoice. Once payment has been received, we will coordinate the delivery date with you. Alternatively, personal pickup is possible.
⚠️ This item is subject to legal acquisition requirements. Sale is only permitted to holders of a valid firearms acquisition license.
The required documents can either be uploaded directly in the comment section after checkout or sent to us via email.
⚠️ Please ensure all required pre-entries are available where applicable.