Specna Arms Complete Gearbox v2 Aether™ HAL™ ETU

The Specna Arms Complete Gearbox V2 Ather™ HAL™ ETU is a fully pre-assembled Version 2 gearbox designed for airsoft players and technicians who wish to fit their AEG with a modern, reliable and ready-to-use internal upgrade. The combination of the patented Ather™ Gearbox, a programmable HAL™ ETU, CNC-machined 16:1 gears and high-quality internal components makes this gearbox suitable for both high-powered skirmish builds and advanced tuning projects.

As all the essential components are already fitted, this complete gearbox provides an excellent basis for a quick and professional upgrade of any compatible V2 replica.

Designed for powerful and reliable performance

At the heart of this gearbox is the exclusive Specna Arms Ather™ Gearbox Shell, protected by European patent number 015044865-0001. The gearbox has been reinforced at the points subject to the heaviest stress and is equipped with various smart inspection and maintenance features.

For example, the shell features an Anti-Reversal Release Window, inspection windows for pre-cocking and Angle of Engagement (AoE), an inspection window for the motor gear, and an integrated trigger adjustment. In addition, special alignment holes ensure that both halves of the gearbox fit together perfectly during assembly.

These features make maintenance easier and improve the reliability of the entire gearbox.

High-quality internal components

The gearbox is constructed entirely from carefully selected components that can withstand intensive use. For example, it features a reinforced polymer piston fitted with a solid steel rack, combined with a steel cylinder, aluminium cylinder head, piston head and nozzle.

The CNC-milled 16:1 steel gears offer an excellent balance between trigger response and durability. In addition, 8 mm J-Cage ball bearings on the motor and sector gears, combined with an 8 mm plain bearing for the spur gear, ensure a smooth and efficient drive.

The ball-bearing steel spring guide also helps to ensure smooth operation, even with heavier springs.

Programmable HAL™ ETU

This gearbox comes fitted with the Specna Arms HAL™ Electronic Trigger Unit as standard. This system uses magnetic Hall sensors for extremely accurate trigger detection, thereby eliminating the need for mechanical switches.

The HAL™ ETU offers extensive programming options, allowing you to configure the replica entirely to your liking. For example, the trigger sensitivity, pre-cocking and various firing modes can all be easily programmed via the trigger, without the need for an external programming card.

Among other things, the ETU supports Active Brake, Binary Trigger, multiple burst modes and various semi-automatic settings to suit a range of playing styles.

Practical insights

A complete gearbox saves a lot of time during an upgrade and reduces the risk of assembly errors. Thanks to the pre-assembled internal components and the integrated HAL™ ETU, this version is particularly appealing to players who want to benefit immediately from modern electronics without having to build a complete gearbox themselves.

The 16:1 gear ratio provides an excellent all-round basis for replicas that combine a fast trigger response with high reliability.

Please note: when using the replica for the first time, after connecting the battery, you must hold the trigger down for approximately five seconds whilst the replica is set to SAFE. This activates the HAL™ ETU.

Who is the Specna Arms Complete Gearbox V2 Ather™ HAL™ ETU suitable for?

This complete gearbox is ideal for airsoft players, tuners and technicians looking for a high-quality, pre-assembled Version 2 gearbox with modern electronic control. Thanks to the reinforced Ather™ Gearbox, the comprehensive HAL™ ETU and the high-quality internal components, this gearbox is suitable for both reliable skirmish replicas and advanced performance builds.

Are you looking for a complete gearbox that’s ready for installation straight away and offers extensive programming options? Then the Specna Arms Complete Gearbox V2 Ather™ HAL™ ETU is an excellent choice.

Key features

• Original Specna Arms Complete Gearbox V2.
• Reinforced Ather™ Gearbox Shell.
• European patent (015044865-0001).
• Fitted with HAL™ ETU as standard.
• Hall sensor trigger detection.
• Active Brake.
• Binary Trigger.
• Adjustable trigger sensitivity (5 levels).
• Adjustable pre-cocking (6 levels).
• Programmable semi-automatic and automatic firing modes.
• CNC 16:1 steel gears.
• Reinforced polymer piston with a solid steel rack.
• Aluminium pistonhead, cylinderhead en nozzle.
• Steel cylinder.
• Ball-bearing steel spring guide.
• 8 mm J-Cage ball bearings and 8 mm plain bearings.
• Mancraft trigger.
• Suitable for Version 2 AEG gearboxes.
• Weight: approximately 525 grams.

Contents of the pack

• Specna Arms Complete Gearbox V2 Ather™ HAL™ ETU.

Common mistakes

A common mistake is forgetting to activate the HAL™ ETU after the initial installation. Immediately after connecting the battery, press and hold the trigger for approximately five seconds whilst the selector is set to SAFE.

You should also check in advance whether your replica uses a Version 2 gearbox, as this complete gearbox is not compatible with other gearbox versions.

Frequently Asked Questions

Which replicas is this gearbox suitable for?
This complete gearbox is designed for airsoft replicas that use a Version 2 gearbox.

Has the ETU been installed yet?
Yes. The HAL™ Electronic Trigger Unit is fully assembled and configured at the factory.

What is the gear ratio of this gearbox?
The gearbox is fitted with CNC-machined 16:1 steel gears.

Can I programme the firing modes?
Yes. Using the HAL™ ETU, you can easily set modes such as semi-auto, full-auto, burst, binary trigger and pre-cocking, amongst others.

Do I need to activate the HAL™ ETU?
Yes. After connecting the battery, press and hold the trigger for approximately five seconds whilst the replica is set to SAFE to activate the module.

With the Specna Arms Complete Gearbox V2 Ather™ HAL™ ETU, you’re choosing a fully pre-assembled premium gearbox that combines modern electronics, high-quality internal components and a reinforced construction. An ideal upgrade for any Version 2 AEG that needs to be ready for reliable performance and extensive tuning options.