JeffTron LEVIATHAN V2 Optical (rear wired) + CNC CURVED Trigger – Black

Leviathan V2 Optical ETU unit by JeffTron with rear wiring.

Includes a CNC aluminum CURVED trigger by Retro Arms (black).

For gearbox V2 and V2.5 (M4, M16, MK18, HK416, SR-25, and other platforms).

Bluetooth programming via JeffTron app (iOS / Android).

Hair trigger mode with just 0.13 mm of travel.

RFTS system – realistic trigger resistance simulation.

Technical Specifications

• Gearbox type: V2 / V2.5
• Programming: Bluetooth app (Android / iOS incl. smartwatch support)
• Cycle detection: Optical sensor on sector gear
• Selector detection: Optical sensor with sticker
• Wiring: Teflon (AWG16 and AWG22)
• Voltage: 8.4–17 V (NiMH, LiPo, LiFe)
• Protections: Overcurrent, temperature, undervoltage
• RFTS support: Yes
• DSG support: Yes
• Krytac compatibility: Yes (bottom PCB part must be removed)
• Accessory ports: Input and output available

Gearbox Compatibility

• M4, M16, HK416, AR15 with V2 gearbox (TM standard)
• SR-25 with V2 gearbox (TM standard)
• ICS SSS V2 gearbox (requires additional cover)
• MP5 with V2 gearbox (TM standard)
• G3 with V2 gearbox (TM standard)
• G&G G2 V2 gearbox (v2.1 – requires additional sensor installation)
• M249 with V2 gearbox (Featherweight version)
• Krytac M4 (bottom PCB must be removed per manual)
• Snow Wolf M107 BARRETT AEG
• And more possible platforms

NOT compatible:

• KWA V2.5 gearbox
• S&T or Arcturus V2 gearbox
• Ares Amoeba V2 gearbox
• APS eSilver edge V2 gearbox
• V2 gearbox with microswitch

Package Includes

• Leviathan V2 Optical with wiring
• Retro Arms CNC trigger with adjustable travel
• Mounting screw and foam pads for gearbox
• 2× cable holders
• Selector sticker set and Leviathan decals
• Online installation manual (English)

Warning

• Installation requires advanced knowledge of AEG gearbox function.
• Always follow the manual exactly, especially correct optical sensor positioning.
• Most common mistakes include misaligned sensors, poorly attached fire selector stickers, or incorrect sector gear height.
• The unit must be calibrated via the app before first use (light tuning, cycle detection, selector position setup).
• Compatible smartwatches include Apple Watch Series 3+, Samsung Galaxy Watch 4+, Google Pixel Watch, Mobvoi TicWatch Pro 5, Hublot Big Bang e Gen 3, TAG Heuer Connected Calibre E4, Montblanc Summit.