[Specna Arms] SA-F04 FLEX ETU G2 BLDC AEG Rifle / 18+ (Delayed shipment / Scheduled for release in early August 2026 - Pre-order)

Notice from the Manufacturer
Due to a higher-than-expected volume of orders, we may allocate products based on incoming stock.
Some customers may have their orders shipped with the second batch of arrivals. (Updated: 2026/07/10)

Due to delays in the shipping schedule, the release date has been changed to early August. (Updated: 2026/07/22)
There are shipping delays due to the typhoon. We are currently making adjustments, but the release date may be mid-to-late August (after the Obon holiday). (Updated: 2026/07/30)

Pre-orders for the popular "SPECNA ARMS" items have begun!

What is SPECNA ARMS? Features and Series Explanation

[FLEX Series]
An entry-level model specializing in lightness and mobility, this series features quick aiming and excellent maneuverability.

The Flex ETU G2 BLDC series is an electric gun that offers practical equipment and high operating performance at an attractive price point. It comes standard with the "HAL ETU™" optical sensor-controlled electronic trigger and a high-performance "Dark Matter™" brushless motor, providing sharp response and stable operating performance.
Furthermore, it features a rotary TDC Magnus™ hop-up chamber, 8mm slide bearings + steel gears, and a quick-change spring system. The M-LOK handguard and receiver are made of nylon fiber-reinforced polymer, making it lightweight and easy to handle, offering a well-balanced gun suitable for a wide range of field uses right out of the box.

[Features]
・Dark Matter™ brushless motor standard
・Electronic trigger control by HAL ETU
・Nylon fiber-reinforced polymer M-LOK handguard
・6.03mm inner barrel
・Rotary TDC Magnus hop-up chamber
・16:1 CNC gears
・8mm slide bearings
・Equipped with quick-change spring system
・Full-auto/burst/semi-auto compatible
・T-connector adopted
・Comes with 2 x 125-round spring magazines

■Product Specifications:
・Handguard type: M-LOK
・Inner barrel inner diameter: 6.03mm
・Inner barrel material: Brass
・Inner barrel length: 229mm
・Chamber type: Rotary TDC Magnus™
・Body size: 670mm～750mm
・Body weight: 2125g
・Equipped with quick spring change system
・Magazine type: 125-round spring magazine
・Handguard material: Nylon fiber-reinforced polymer
・Receiver material: Nylon fiber-reinforced polymer
・Barrel thread: 14mm counter-clockwise
・Internal specifications: 8mm slide bearings, steel gears, polycarbonate polymer piston
・Firing mode: Full auto / adjusted burst / semi auto
・Electronic trigger: HAL equipped
・Connector type: T-connector
・Compatible battery: EVO LiPo battery 7.4V/1200mAh stock pipe-in (T-connector)
・Motor: Dark Matter™
・Gearbox: Gearbox V2

It adopts specifications that emphasize practicality for both internal and external components, such as a rotary TDC Magnus™ hop-up chamber, 8mm slide bearings + steel gears, and a quick spring change system.
The M-LOK handguard and receiver, made of nylon fiber-reinforced polymer, ensure lightness and ease of handling. It is a well-balanced gun that can be used in a wide range of field environments right out of the box.

■First Start-up Procedure
1. Set the selector to "SAFE."
2. Connect the battery. After connecting, a beep will sound "3 times." Approximately 3 seconds later, a "single high-pitched beep" will sound.
3. Hold the trigger for about 5 seconds. When "two high-pitched beeps" sound, the setup is complete.

■Equipped with HAL ETU™ electronic control system
The trigger incorporates "HAL ETU™" for electronic control via optical sensors. It achieves both sharp, excellent response and a stable operating feel.

[Main functions of HAL ETU™]
・Full-auto / Semi-auto / Configurable burst firing
・Trigger sensitivity setting
・Pre-cocking setting
・Active braking setting

■Dark Matter™ Motor Equipped

The standard equipped high-performance "Dark Matter™" brushless motor achieves excellent performance with high torque and low power consumption.

■Specna Arms electronic trigger "HAL" settings
Quickly switch the selector switch from "AUTO" to "SEMI" twice, then set it to "SEMI" to enter program mode.
In program mode, first select each setting item. If you pull the trigger once while the selector switch is still in "SEMI", a beep will sound, and you can switch between setting items.

[Setting Items]
Beep × 1 - Full-auto settings
Beep × 2 - Semi-auto settings
Beep × 3 - Trigger settings
Beep × 4 - Pre-cocking settings
Beep × 5 - Active braking settings

With the desired setting item selected, switch the selector lever to "AUTO" to enter the detailed setting mode for that item.
Hold down the trigger for 3 seconds while the selector lever is in "AUTO" to save the program settings.

[Details for each item]
・Full-auto settings
Beep × 1 - Full-auto
Beep × 2 - Semi-auto
Beep × 3 - 3-round burst
Beep × 4 - 5-round burst

・Semi-auto settings
Beep × 1 - Semi-auto only
Beep × 2 - Binary
Beep × 3 - AUG mode
Beep × 4 - Sniper mode

・Trigger settings
Beep × 1 - 20%
Beep × 2 - 40%
Beep × 3 - 60%
Beep × 4 - 80%
Beep × 5 - 100%

・Pre-cocking settings
Beep × 1 - LEVEL 1
Beep × 2 - LEVEL 2
Beep × 3 - LEVEL 3
Beep × 4 - LEVEL 4
Beep × 5 - LEVEL 5
Beep × 6 - LEVEL 6

・Active braking settings
Beep × 1 - ON
Beep × 2 - OFF

Hold down the trigger for 3 seconds while the selector lever is in "AUTO" to save the program settings and exit.

・Binary: One shot when the trigger is pulled, one shot when released
・AUG: Semi-auto when the trigger is pulled lightly, full-auto when pulled deeply
・Sniper: Pull the trigger once, then pull it again after a beep to fire

*For normal use, please set pre-cocking to LEVEL 1-3. LEVEL 4-6 are settings for advanced customizations.
*Active braking is "ON" by default. If you are not making any customizations, there is no need to turn it "OFF", so please leave it as is.

■Accessories
・Spring magazine × 2
・Cleaning rod
・Hex wrench
・Small Tamiya - Deans adapter
・BB speedloader
・M90 additional spring

■Note:
※Product specifications are subject to change without notice.
※This product is for "ages 18 and older." Individuals under 18 cannot use or purchase it.
※Customers making a purchase may be asked by local authorities or police departments to present identification. In such cases, please comply with the request and provide your identification.