Airtech Studio Speed Trigger Converter (STC) for ARP9 & ARP556

The Airtech Studio Speed Trigger Converter (STC) for ARP9 & ARP556 is a performance upgrade designed to significantly reduce trigger travel and improve trigger response on compatible G&G AEG platforms. Installed inside the gearbox, it alters the trigger contact position so the trigger activates much sooner, creating a near “hairline” trigger feel for faster semi-auto shooting.

By reducing the physical distance the trigger must travel before activation, the STC helps improve reaction speed and firing control, making it especially useful for competitive airsoft, speedsoft, and CQB-style gameplay. It works with the factory ETU system, retaining electronic control while enhancing responsiveness.

Manufactured from durable high-strength polymer, the converter is built for reliability and long-term use inside the gearbox. It is designed specifically for G&G ARP9 and ARP556 models, as well as other compatible CM16/TR16 ETU-based platforms, and installs as an internal modification requiring gearbox access.

Key Features:
• Designed for G&G ARP9 & ARP556 ETU platforms
• Reduces trigger travel for faster response
• Creates a near “hairline trigger” feel
• Improves semi-auto speed and reaction time
• Works with factory electronic trigger unit (ETU)
• Durable high-strength polymer construction
• Ideal for CQB, speedsoft, and competitive play
• Requires gearbox access for installation