JeffTron LEVIATHAN V2 Optical (rear wired) + CNC EDGE Trigger - Black

JeffTron Leviathan V2 Optical with CNC Retro Arms Trigger

Leviathan V2 Optical is an electronic ETU unit with Bluetooth, designed to be installed in gearbox V2 and V2.5 based on the TM standard. Thanks to its optical sensors for shot detection and fire selector position, and an ultra-short switch (just 0.13 mm), it enables a precise hair trigger mode. The Real Feel Trigger System (RFTS) simulates realistic trigger resistance using a spring and provides trigger reset after each shot. You can configure firing modes, rate of fire, active braking, pre-cocking, virtual magazine, and more in real time using the JeffTron app. The input and output ports allow connection of accessories such as flashlights, electric magazines, or an empty magazine sensor. The unit is coated with conformal lacquer. It supports high-RoF setups including DSG gearsets and is ready for Brushless motors like Warhead. All changes made in the app are saved instantly to the unit’s memory. Additionally, the unit comes with a CNC aluminum trigger from Retro Arms featuring an adjustable screw for pre-travel and stylish design.

Key Features

• Bluetooth programming via the JeffTron mobile app (iOS/Android including smartwatch support)
• Hair trigger – activates at only 0.13 mm of travel
• Real Feel Trigger System (RFTS) – spring-loaded resistance and trigger reset
• Optical sensors for cycle and fire selector position
• 9 firing modes including Binary Trigger and virtual magazine
• Adjustable active braking
• Pre-cocking function for instant SEMI shots
• Brushless motor support (Warhead, T238, Specna Arms Dark Matter, and others)
• Complete plug-and-play wiring harness with T-DEAN connector
• Motor + output delay mode for powering peripherals like drum mags, tracer units, or bolt catch sensors

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.