The JeffTron Leviathan V2 Optical to Stock is a next-generation Electronic Trigger Unit (ETU) and MOSFET system designed to replace mechanical trigger contacts in Version 2 AEG gearboxes. Built with optical sensors for ultra-fast response and advanced firing modes, the Leviathan system offers full programmability through the JeffTron mobile app via Bluetooth connectivity.
The to Stock version is pre-configured for AEG builds where the battery is placed in the stock. This package also includes the Speed CNC Trigger (Black), providing a premium trigger feel and enhanced control for precision shooting.
Perfect for players seeking total control over their AEG’s performance, the Leviathan offers features like pre-cocking, binary trigger, active braking, adjustable rate of fire, and more.
Features
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Designed for Version 2 AEG gearboxes (battery-in-stock configuration)
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Includes Speed CNC Trigger (Black)
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Optical sensors for precise and fast trigger response (no mechanical contacts)
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Bluetooth connectivity with JeffTron mobile app for easy programming
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Supports advanced firing modes:
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Semi-auto, burst, full-auto, binary trigger, sniper delay, pre-cocking, and more
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Active braking, low battery warning, and motor protection features
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Firmware updates available through the app
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Plug-and-play design with pre-wired harness for stock-mounted batteries
Specifications
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Compatibility: Version 2 AEG gearboxes (battery-in-stock setup)
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Battery Compatibility: Li-Po / Li-Ion / NiMH
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Connectivity: Bluetooth (JeffTron mobile app)
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Trigger Included: Speed CNC Trigger (Black)
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Brand: JeffTron
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Origin: Made in the Czech Republic
What's Included
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1x JeffTron Leviathan V2 Optical ETU (to Stock version)
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1x Speed CNC Trigger (Black)
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Pre-wired harness for stock battery configuration
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Installation manual (or QR code link to online manual)
Important Notes
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Confirm gearbox type and battery placement before purchase.
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Professional installation by an experienced airsoft technician is highly recommended.
Disclaimer
⚠️ This product is an upgrade part intended for toys only. Not for real firearms.
