Descrizione
Introducing the SA-F04 FLEX Gen.2 HAL ETU airsoft carbine in Olive — a meticulously engineered Specna Arms platform designed to elevate performance, reliability, and field versatility. Grounded in Specna Arms’ reputation for precision, every component on this Gen.2 FLEX model has been redesigned to outpace the demands of intense skirmishes while remaining accessible to players who want out-of-the-box readiness and long-term upgrade potential.
Why this Flex Gen.2 stands out
The Flex Gen.2 platform is built around a modular, high-strength chassis that combines nylon-fibre reinforced polymer with critical metal components. This pairing delivers a light, balanced feel without sacrificing durability, making it ideal for rapid transitions between CQB and longer-range engagements. The olive finish provides a tactical, non-reflective profile that blends into woodland and urban environments alike.
Advanced internals for precision and consistency
- Top Down Center Hop-Up (TDC Magnus) chamber with a European Patent (015052069-0001) for ultra-stable, repeatable BB release and fine-tuning of backspin for accuracy at varied ranges.
- Helium Flat Hop Eraser to improve the stability of the BB’s undercurve, reducing hop variance across shots.
- Aluminium sealed nozzle for consistent air seal and reduced shot-to-shot inconsistencies.
- Æther™ Gearbox with a reinforced frame and pre-cocking AoE inspection windows — designed for long-life operation and easier maintenance checks.
- 8mm plain bearings and steel gears paired with a polycarbonate piston with full steel slats and a high-precision 6.03mm barrel for reliable, accurate shoots.
- ESA™ quick spring change system enabling rapid power changes on the field to adapt to different play areas without tools.
HAL ETU — intelligent fire control and programmability
The HAL™ (Hardware Aware Logic) ETU system brings smart control to your rifle with magnetic sensor-based trigger detection and Hall effect actuation. It delivers an active brake, a binary trigger option, and highly adjustable trigger sensitivity (5 levels from 20% to 100%), giving you tactile, predictable trigger feel. The HAL ETU also includes:
- Adjustable pre-cocking across 6 levels for improved shot consistency, especially in semi- or burst-fire modes.
- Auto programmable fire modes (full auto, semi, 3-round burst, 5-round burst) and semi-programmable modes (semi, binary, AUG, sniper) for adaptable engagements.
- Easy programming via trigger interface and a built-in low battery alarm to prevent mid-game drop-offs.
- Compatibility with brushless motors for cleaner power delivery and extended motor life.
Ergonomics, handling, and field-ready features
The HAL ETU-equipped rifle uses a durable, lightweight chassis that minimizes fatigue during extended games. The Light Ops Stock provides a sleek, low-weight silhouette with a modern design and non-slip rubber cheek stickers for secure aiming. The distinctive curved rubber stock foot sits comfortably against the shoulder, helping maintain a stable sight picture during rapid follow-up shots. Other noteworthy design elements include enlarged manipulators on both sides (selector and magazine release) and a functional bolt-catch for intuitive operation under pressure.
Performance-oriented build details
- Specna Arms proprietary 6.03mm precision barrel for consistent accuracy and tight groupings at typical skirmish ranges.
- Metal externals and reinforced frame coupled with a nylon reinforced body result in a robust platform capable of withstanding frequent field use.
- Ready for M140 springs to meet higher-power field regulations while maintaining reliability under load.
- Internal design highlights include 8mm bearings, a press-fit nozzle, and carefully chosen materials that balance weight with durability for real-world play.
- Quick-swap compatibility with common upgrade paths and accessories, ensuring your rifle remains competitive as you refine your loadout.
Who this rifle is ideal for
Ambitious players who want a high-performance platform out of the box, with room to tune and customize as they gain experience. It’s perfect for players who value field adaptability, long-term reliability, and a system that supports advanced fire modes and battery options. Whether you’re building a precision setup for mid-range engagements or a fast-response CQB carbine, the SA-F03 FLEX Gen.2 HAL ETU Olive is designed to scale with your skills.
Maintenance and best-practice tips
Regular lubrication of moving parts, periodic inspection of the reinforced frame, and checks of the hop-up and nozzle seal will keep this platform performing at peak levels. Take advantage of the ESA™ quick spring change system to experiment with different spring configurations in different field scenarios. Always verify battery compatibility with the HAL ETU and ensure a brushless motor setup is properly configured to avoid overheating during extended games.
For more about related gear, explore the Specna Arms collection (collections/specna-arms) and related fields such as high-performance carbines (collections/airsoft-carbines). You can also find HAL ETU upgrade paths and compatible options in the HAL ETU family (collections/hal-etu).
|
Battery included
|
No
|
| Bearings diameter [mm] |
8
|
|
Blow Back
|
No
|
| Colour |
Olive
|
| Product length [cm] |
75.50
|
| Product weight [g] |
2145
|
| Power supply |
Electric
|
| Material |
Aluminum
Plastic
|
|
Muzzle velocity [FPS]
|
410
|
| Fire mode |
Full-auto
Adjusted burst
Semi-auto
|
|
Gearbox version
|
Gearbox v2
|
|
Hop-Up
|
Yes
|
| Inner barrel length [mm]. |
230
|
| Length minimal [mm] |
670
|
| Magazine capacity [pcs.] |
125
|
| MOSFET/ETU |
Yes
|
| Quick Spring Change system |
Yes
|
| Type of plug |
DEANS / T-connect
|
| Type of thread on the barrel |
14mm CCW
|
Caratteristiche di SA-F04 FLEX Gen.2 HAL ETU Airsoft rifle Olive
Type: Assault Rifle
FPS: 400 (Joule: 1.49)
Powered by: Electric
Battery included: NO
In Germany, the Weapons Act governs the sale and use of Airsoft guns:
- Fully automatic Airsoft pistols with a muzzle energy up to 0.5 joules can be purchased by individuals 14 years of age or older. (please add our downgrade optional service for Germany).
- Handguns and rifles exceeding 0.5 joules must be semi-automatic (one shot per trigger pull) and require the buyer to be at least 18 years old. We'll ask for age verification during your online purchase.
- Age verification is done online before completing your order. If the recipient is different from the person placing the order, we'll also need their age verification.
- Carrying Airsoft guns in public is generally prohibited, even if they're not readily visible. Exceptions exist with a valid firearms license, but this only applies to handguns and semi-automatic rifles.
- Full Auto Airsoft guns exceeding 0.5 joules are considered firearms under the Weapons Act. Carrying them without a valid firearms license (with the "F in a pentagon" marking) is an administrative offense.
- Transporting Airsoft guns requires them to be unloaded, secured, and in a closed container.
- Using Airsoft guns is permitted on private property (with the owner's consent) and designated Airsoft fields.
Please ensure you comply with these regulations when purchasing and using Airsoft guns in Germany.
- Delivery time: 7 working days
- Processing time: Typically 48 hours (additional day for customs documentation)
- Shipping carrier: UPS
IMPORTANT: Airsoft Replica Purchase Requirements
- Valid defense: To purchase a Realistic Imitation Firearm (RIF), you must provide a valid defense.
Some valid defenses include:
- UKARA ID
- Membership in a reenactment company
- Museum curator status
- Membership in a television or film production team
- Two-tone service: Alternatively, if you can't provide a valide defense, you can request our two-tone coloring service, which allows you to purchase an airsoft replica without additional documentation.
Please note: Airsoftmania is not responsible for delivery problems due to missing defense documents.
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