JeffTron LEVIATHAN V3 Optical + Stock Wiring Extender

Leviathan V3 Optical ETU unit by JeffTron with front wiring (handguard / above gearbox).

In a set with a wiring jumper / extender to the stock.

Designed for gearbox V3 (AK series, G36, CZ805 Bren, and others).

Bluetooth programming via JeffTron app (iOS / Android).

Hair trigger mode.

Ready for Brushless motors.

RFTS system – resistance similar to a real firearm.

Technical Specifications

• Gearbox type: V3
• Programming: Bluetooth app (Android / iOS incl. smartwatches)
• Cycle detection: Optical sensor on sector gear
• Selector detection: Optical sensor with sticker
• Wiring: Teflon (AWG16 and AWG22), routed to front
• Voltage range: 8.4–17 V (NiMH, LiPo, LiFe)
• Protections: Overcurrent, overheat, undervoltage
• RFTS support: Yes
• DSG gear support: Yes
• Accessory connection: Input and output ports

Gearbox Compatibility

• AK47, AK74, Galil, Bizon with TM-standard V3 gearbox
• Tokyo Marui AK47 Next Generation (not NGRS)
• G36, XM8 with TM-standard V3 gearbox
• Tokyo Marui G36 Next Generation (not NGRS)
• ASG CZ 805 BREN
• AUG
• UAR with TM-standard V3 gearbox
• FAL / SA58 with TM-standard V3 gearbox (not vz.58)
• MP5K
• UMP with TM-standard V3 gearbox
• SIG 55X with TM-standard V3 gearbox
• S&T VSS or VAL

Package Contents

• Leviathan V3 Optical with wiring
• Screw and washer to secure unit in gearbox
• 2x foam pad (1mm and 2mm for trigger sensitivity)
• Fire selector stickers and Leviathan logo sticker
• Installation manual (English)
• Stock wiring extender

Warnings

• Installation requires advanced knowledge of AEG systems.
• Follow the manual precisely, especially the optical gear sensor position.
• Common errors include misaligned sensors, poorly attached selector stickers, and incorrect gear height.
• Unit calibration via app is required before first use (light tuning, shot cycle, fire selector positions).
• Compatible smartwatches: Apple Watch Series 3 and newer, Samsung Galaxy Watch 4 and newer, Google Pixel Watch, Mobvoi TicWatch Pro 5, Hublot Big Bang e Gen 3, TAG Heuer Connected Calibre E4, Montblanc Summit.