Specna Arms SA-F04-RL Flex BLDC Light Ops Stock HAL ETU Gen. 2 AEG Assault Carbine - Olive

A fully electric replica of the SA-F04-RL carbine from the Flex Gen. 2 series, crafted from nylon fiber-reinforced polymer and metal parts. Outfitted with a HAL ETU control unit, settings can be tailored to your individual requirements. Features a brushless BLDC motor as well as an ESA quick spring change system. All structural components are manufactured with exceptional precision, ensuring outstanding performance and seamless operation of every mechanism.

The receiver, buffer tube, and pistol grip are constructed from nylon fiber reinforced polymer, while metal parts consist of the flash hider, outer barrel, mock slide, ejection port cover, fire selector, bolt release, magazine catch, QD mounts on the stock, pins, and charging handle. The proprietary Specna Arms receiver features enlarged ambidextrous controls as well as a functional Bolt-Catch. Manufacturer markings and a unique serial number are also present on the receiver.

A 22 mm RIS top rail supports the attachment of any chosen optoelectronic sight. Out of the box, mechanical adjustable flip-up sights—including both a front sight and rear aperture—are already mounted. The M-LOK handguard features two RIS rails on either side, making it possible to add further tactical accessories. A retractable Light Ops Stock with a non-slip buttplate gives users the flexibility to customize the replica’s length to suit their needs.

Equipped with a rotary Hop-Up TDC Magnus chamber, the model works in tandem with a 6.03 mm precision barrel to enhance both range and accuracy. The inclusion of the Helium Flat Hop rubber ensures greater shot stability for each BB. A standard flash hider is installed on a 14 mm left-hand thread, permitting the attachment of a sound suppressor if desired.

At the heart of the replica is the Aether gearbox featuring a reinforced structure, delivering BB firing speeds of 390 FPS. Outfitted with:

• main spring decompression feature
• inspection slots for pre-cocking and adjustment of AoE
• strengthened front section
• extra access points to facilitate easy shimming
• adjustable trigger mechanism
• framework alignment mounting points
• support for M140 springs

Additionally, the replica incorporates a brushless BLDC Specna Arms Dark Matter High Speed 27k motor.

The replica is outfitted with a trigger control system, the HAL ETU, which manages operation and enables straightforward function programming via the trigger and selector. The HAL system offers multiple functionalities that ensure easy customization of the replica to match the shooter’s preferences and provide protection during operation, such as:

• trigger response detection utilizing magnetic sensors and the Hall effect
• active braking system
• binary firing mode
• customizable trigger sensitivity with 5 selectable levels ranging from 20% to 100%
• pre-cocking adjustment featuring 6 distinct levels
• programmable Auto firing modes including Full Auto, Semi, 3-round Burst, and 5-round Burst
• programmable Semi firing modes such as Semi, Binary, AUG, and Sniper
• easy setup and programming through the use of the trigger
• low battery warning system
• support for brushless motor compatibility

Engineered with the ESA quick spring replacement system, the carbine enables swift power adjustment to match game requirements, eliminating the need to dismantle the gearbox or utilize specialized tools. Outfitted with a M120 spring by default, the replica achieves a muzzle velocity of 390 FPS. An additional M90 spring is included, making the model ideal for CQB and indoor scenarios.

Included in the package are two Mid-Cap magazines, each holding a capacity of 125 BBs.

• Specna Arms SA-F04-RL Flex BLDC Light Ops Stock HAL ETU Gen. 2 AEG Assault Carbine in Olive colorway
• Includes 2 Mid-Cap S-MAG Magazines
• Features a Cleaning Rod
• Provided with an Allen Key
• Comes with a Small Tamiya to T-Deans Adapter
• Equipped with a BB Speedloader
• Supplied with an Additional M90 Spring

• Robust build quality
• Aether v2 gearbox
• Equipped with a Specna Arms Dark Matter High Speed 27k BLDC brushless motor
• Features a rotating TDC Magnus Hop-Up chamber
• Outfitted with a front section compatible with the M-LOK system
• Integrated HAL ETU unit
• Comes with a 14 mm CCW threading
• Includes a sighting device
• Fitted with a sliding stock
• Incorporates Helium Flat Hop rubber
• Utilizes the ESA rapid spring change system