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Specna Arms SA-F05-RL Flex Light Ops Stock New Receiver HAL ETU Gen. 2 AEG Assault Carbine - Half-Tan

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€170.05
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€170.05

Specna Arms SA-F05-RL Flex Light Ops Stock New Receiver HAL ETU Gen. 2 AEG Assault Carbine - Half-Tan

Electric replica of the SA-F05 carbine in a Half-Tan finish from the Flex Gen. 2 series, redesigned for enhanced out-of-the-box performance. Outfitted with the ESA quick spring replacement system and a HAL ETU control unit, the carbine offers tailored adjustability to suit individual preferences. The model is equipped with a Light Ops stock. All structural components are precisely fitted, ensuring seamless operation and superior performance.

Custom reinforced body with nylon fiber

The main body, receiver extension paired with the SF-type stock that houses the battery, and the pistol grip are constructed from nylon-reinforced polymer plastic. Metal components include the flash hider, outer barrel, dummy, ejection port cover, fire selector, slide release button, magazine catch, QD mounts on the stock, pins, and charging handle. The proprietary Specna Arms receiver is equipped with ambidextrous, oversized controls and an operational Bolt-Catch.

RIS rail set, adjustable stock with non-slip recoil pad

A 22 mm RIS rail is installed on the rear of the model, enabling the attachment of any optoelectronic accessory. The front section incorporates the M-LOK system with three 22 mm RIS rails, facilitating the addition of various tactical accessories. Standard configuration includes mechanical flip-up sights.

Fitted with a non-slip buttpad, the Light Ops Stock folding stock permits adjustment of the replica’s length to match the user's individual preferences.

Precision barrel, rotary Hop-Up chamber

Equipped with a rotating TDC Magnus Hop-Up chamber, paired with a 6.03 mm precision barrel, the model delivers enhanced range and accuracy. The inclusion of Helium Flat Hop rubber increases the stability of BB trajectories. A standard flash hider, set on a 14 mm left-hand thread, allows for the easy attachment of a sound suppressor.

Reinforced Ather gearbox

At the heart of the replica lies the Aether gearbox featuring a reinforced framework, enabling the model to propel BBs at 380 FPS. Outfitted with:

  • main spring release system
  • pre-cocking and AoE inspection ports
  • reinforced front section
  • inspection windows designed for effortless shimming
  • trigger adjustment capability
  • precision screw holes for framework alignment
  • compatibility with M140 springs out of the box

HAL ETU module

The replica features a HAL ETU trigger control module that manages its operation and enables straightforward programming of various functions through the trigger and fire selector. The HAL system delivers a comprehensive array of options that let users easily customize the replica to their shooting style and enhance safety during use, such as:

  • trigger recognition utilizing magnetic sensors and the Hall effect
  • active braking system
  • binary firing capability
  • adjustable trigger sensitivity with 5 selectable levels ranging from 20% to 100%
  • pre-cocking adjustment with 6 available settings
  • programmable Auto firing modes, including Full Auto, Semi, 3-round Burst, and 5-round Burst
  • programmable Semi firing options like Semi, Binary, AUG, and Sniper
  • simple function programming via the trigger
  • low battery warning indicator
  • compatible with brushless electric motors

Quick spring change system ESA

Designed with the ESA quick spring change system, the carbine enables rapid and convenient adjustment of power to match the requirements of the skirmish, all without having to disassemble the gearbox or utilize any special tools. Out of the box, the replica includes a spring in its default configuration, delivering a muzzle velocity of 390 FPS, and also comes with an additional M90 spring for lowering the velocity to 310 FPS. The model provides full compatibility with Li-Po and Li-Fe batteries.

Set elements

  • Replica
  • S-Mag Hi-Capacity magazine
  • Deans to Mini Tamiya adapter
  • Cleansing rod
  • Allen wrench
  • Supplementary M90 spring

Main features

  • M-LOK handguard equipped with RIS rails
  • Ambidextrous controls for enhanced handling
  • Light Ops Stock for improved maneuverability
  • Specna Arms original receiver construction
  • 6.03 mm tightbore precision inner barrel
  • Rotary Hop-Up system for consistent performance
  • Reinforced Athe gearbox for increased durability
  • Hal ETU electronic trigger module
  • ESA rapid spring change system for quick tuning
  • Mechanical sights included

Technical data

Shade: Half-Tan
Construction materials: plastic and metal
Powered by: electric source
Equipped with: v2 gearbox
Muzzle velocity: 380 FPS
Hop-Up system: available, adjustable
Magazine specification: Hi-Cap
Magazine holds: 300 BBs
Inner barrel measures: 320 mm
Barrel threading: 14 mm CCW
Full length: 760 - 850 mm
Net weight: 2270 g
Connector type: DEANS / T-connect
Brand: Specna Arms

Specna Arms


Militaria.pl is a premium dealer of Specna Arms.


Specna Arms is a brand specialized in the production of ASG replicas, valued for their solid workmanship and value for money. The offered models are characterized by realistic appearance and high durability. The range includes a variety of series - from lightweight CORE™ models for beginners, through advanced EDGE™ models with metal bodies and licensed markings, to top PRIME™ replicas with brushless motors and modern electronics. The brand collaborates with renowned companies such as Rock River Arms and Daniel Defense. Specna Arms has a reputation among both beginners and advanced airsoft players.

More Information
Based on M4
Replica propulsion Electric
Muzzle velocity 380 fps
Accurate shot range Up to 40 m
Magazine type Hi-cap
Magazine capacity 300 6 mm caliber BBs
Gearbox Reinforced
Body Plastic
Overall length 850 mm
Weight 2270 g
Main color Half Tan
Optics ready Yes
Fixed sighting devices Yes
Blowback No
Additional accessories included Yes
Accessory rail Yes
Hop-up Yes, adjustable
Plug type Deans/T-Connect
EAN 5902543207296
Manufacturer code SPE-01-047446
Brand Specna Arms

Reviews with photos

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Number of reviews: 1

  1. V...
    100%

    Super, very wonderful rifle, the materials are top-notch, I had another model flex 03, but in this model the pistol grip is much more comfortable, nice design, cool new stock, you can remove the RIS rails which is very convenient, shooting is just excellent, I recommend!

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