The Perun G&G ETU++ Upgrade Kit is a professional-grade electronic trigger unit designed to give your AEG gearbox cutting-edge control and consistency. With full programmability, active brake technology, and precocking capability, this ETU delivers the response and reliability that serious skirmishers and milsim players demand.
Key Features
- Independently Programmable Firing Modes – Configure safe, semi, burst, and auto freely on both selector positions for your preferred setup
- Active Brake System – Eliminates motor overspin, prevents spring compression, and eliminates double-shot problems on high-rate-of-fire replicas
- Precocking Technology – Instant trigger response for rapid engagement and competitive advantage in firefights
- Deans Connector – Pre-fitted for compatibility with modern AEGs and easy integration into existing battery setups
- G&G Gearbox Compatible – Direct fit for G&G gearbox versions, simplifying installation
Real-World Use Cases
Whether you’re a competitive skirmisher fine-tuning trigger response or a milsim operator standardising your replica’s firing behaviour, the ETU++ adapts to your playstyle. The active brake is particularly valuable on high-torque builds where overspin causes reliability issues. Precocking ensures you’re never caught with a delayed first shot.
Technical Specifications
- ETU Type: Electronic Trigger Unit with programmable modes
- Connector: Deans (T-plug)
- Gearbox Compatibility: G&G standard gearboxes
- Features: Active brake, precocking, independent mode programming
- Installation: Direct gearbox replacement
Compatibility & Upgrades
The Perun ETU++ is engineered for G&G gearbox replicas. Verify your AEG’s gearbox version before purchase. This unit works with standard LiPo and NiMH batteries via the Deans connector. It’s an excellent companion to high-performance motor and spring upgrades, where active brake technology prevents reliability issues.
UK Legal & Site Notes
As an electronic component, the ETU++ is fully legal in the UK and poses no FPS implications. Installation requires basic gearbox disassembly—consider professional fitting if you’re unfamiliar with AEG internals. Most UK airsoft sites accept ETU-equipped replicas without restriction.
Upgrade your trigger response and motor control. Shop the Perun G&G ETU++ Upgrade Kit at Airsoftdirect today.

















