Aster II Blue Expert | Bluetooth® for V3 AEG & HPA | Front Wired | Gate

Aster II Blue Expert – Bluetooth® ETU for your replica

This electronic trigger unit (ETU) is a drop-in module for V3 gearboxes that works with both AEG and HPA systems. The Aster II Blue Expert replaces your mechanical trigger contacts with an electronic system that communicates with your smartphone via Bluetooth 5.2. With an airsoft MOSFET like this, you gain full control over trigger response, rate of fire, and selector modes without the need for separate dongles.

Technical specifications

The unit features a black circuit board with blue accents and is designed for front-wired configurations. The system includes an integrated Bluetooth 5.2 module, cycle detection via cam sensor, and a multifunctional port for external sensors. The Aster II supports both standard AEG motors and brushless variants and can operate with dual solenoid HPA setups.

Compatibility and application

This ETU fits all V3 gearboxes and is compatible with various replicas such as AK variants and G36 models. Installation requires no soldering – it is a drop-in system that replaces your existing trigger assembly. Using the GCS app, you can configure settings such as pre-cocking levels, active brake strength, burst modes, and battery protection parameters. The unit works with standard NiMH, LiPo, and Li-Ion batteries.

Ready to add the Aster II Blue Expert to your setup?