Full Metal Gearbox Set for M4 / M16 AEG Airsoft Rifles – With Poseidon Medusa ETU
Upgrade your airsoft rifle with this complete full metal gearbox set, designed to deliver rugged reliability and next-generation electronic control. Built to fit standard AEG M4/M16 platforms, this set is ideal for both replacements and serious performance upgrades.
At its core is the Poseidon Medusa ETU (Electronic Trigger Unit) — a revolutionary system that offers Bluetooth programmability through a dedicated app. Users can fine-tune performance with advanced features such as binary trigger, burst fire modes, adjustable trigger travel, pre-cocking, and many more customizable settings. Whether you're looking for faster response time or tailored firing profiles, the Medusa ETU transforms your AEG into a smart combat machine.
Features
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Durable full metal gearbox construction for long-lasting performance
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Complete drop-in set, compatible with most M4/M16 AEG rifles
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Integrated Poseidon Medusa ETU, bringing next-gen control and responsiveness
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Bluetooth programmable via smartphone app
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Supports binary trigger, burst fire, trigger sensitivity adjustment, and much more
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Perfect for competitive players and advanced loadouts
Dominate the field with a gearbox that delivers both power and precision—backed by Poseidon's cutting-edge Medusa electronics.