Jefftron Leviathan – V2 w/ CNC Black Trigger (Rear Wired)

(9 customer reviews)


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Product description: Leviathan – V2 to stock

Version 1.1 brings:
– improved current load capacity for upgraded weapons
– added pads for the MAXX hop-up chamber BBs illumination or powering electric magazine
– moved semi and auto micro switch for better cross-manufacturer compatibility
– added labels to the board for easier installation
– clipped jumper pins between boards

Leviathan new function

Look at new function of Leviathan-V2, where comes with update
  • Added Statistics page with shot timing, current, rate of fire, temperature, etc.
  • Added over spin detection settings
  • Added Bluetooth power switch settings
  • Added temperature unit settings.
  • Rate of fire has minimum at 40% with finer steps
  • Pre-cocking can be set up from 10% active braking
  • Changed double trigger name to binary trigger

Leviathan – V2 is processor controlled mosfet with Bluetooth communication. It adds new shooting modes, controls RoF, pre-cocking, active braking, low battery indication, statistics…
Everything is controlled via application in the smart phone (iOS and Android).
Device is fully integrated inside the gearbox version 2 instead of the original trigger contacts.
Comes with completely made wires to stock with mini fuse and deanT connector – no soldering needed.

Leviathan banner

– Adds new shooting modes independent for every position on the fire selector (SAFE – SEMI – AUTO)
– Three adjustable bursts (range 2 – 20 shots)
– Rate of fire can be reduce to 40%. It add breaks between shots to reduce RoF. It gives fast trigger response even with very low rate of fire, just like in a real gun
– Adjustable strength active braking (can be disabled)
– Pre-cocking function for instant shot on SEMI fire
– Delay between shots adds time in which isn’t possible to shoot, it simulates the delay from gun reload or recoil (range 0,1 – 4,0 seconds)
– Electronic fuse set sensitivity for high current detection to avoid any damage if something goes wrong
– Low battery indication for 2S – 4S li-pol and 3S – 4S li-fe
– Statistics screen shows shooting output with cycle timing, motor current consumption, rate of fire and mosfet temperature. It allows you to do fine-tune gearbox upgrade
– Application shows actual battery voltage value. Color lines indicates battery charge status
– User can save multiple settings under profiles
– Update function fixes bugs and adds new features to the device
– There are three shot counters. Total count every shot during the device lifetime. User counter can be reset by user anytime. Power-up counter is reset by battery connection
– Error log shows errors made during the device life
– For better security Bluetooth can be disable by the selector switch (can be deactivated)
– Leviathan – V2 monitors current, voltage and temperature to avoid any damage when something go wrong.
– Motor vibrates and beeps as a feedback for user
– Programmed settings are saved in the Leviathan – V2 memory immediately after their change, so settings aren’t lost when is Bluetooth or battery disconnected
Independent for every position on the fire selector (SAFE – SEMI – AUTO)
– SAFE: no responding on the trigger pull.
– Semi: it fires single shot per trigger pull.
– Semi/BurstX: short trigger pull fires single shot, long trigger pull fires burst.
– Binary trigger: it fires single shot when trigger is pulled and another single shot when is released.
– BurstX: gun shoot burst per trigger pull.
– BurstX+BurstY: short trigger press fires burstX, long trigger press makes burstX+burstY fire.
– BurstX/Full: short trigger press fires burstX, long trigger press makes auto fire.
– Full: gun makes auto fire until releasing trigger.TECHNICAL SPECIFICATIONS:
– Easy installation inside the gearbox version 2, compatible with Tokyo Marui standard
– In the most cases is no modifications needed in the gun or Leviathan – V2
– It uses micro switch actuated by sector gear for perfect semi and burst fire timing
– CNC trigger included with package has screw to move its zero position. Thanks to it, shot can be made by very short trigger pull, it is called “hair trigger” modification
– Thanks to advanced electronics, Leviathan – V2 can be used with any common gearbox upgrade and gun rate of fire
– Completely made wiring allows the fastest and the easiest installation into the gun, it is long enough for all kind of weapons with battery placed in the stock. No soldering is needed
– There are high quality power wires 1,5 qmm (AWG16) with thin and hard MPPE insulation and signal blue wire 0.34 qmm (AWG24) with MPPE insulation
– Power wires outer diameter is only 2,06 mm and blue wire 1,24 mm
– The wire length between the gearbox and the battery connector is 290mm
– Electronics are coated with lacquer, it protects Leviathan – V2 against water
– For right pre-cocking function is necessary to have in the gearbox functional antireverse latch
– Specified for common batteries up to 17V (Ni-xx 8.4 – 12V, lipol 7.4 – 14.8V)
– Device increases gun rate of fire and battery holds longer, than with basic wiring
– With active braking ON piston isn’t partially stretched, spring is fully released, parts in mechabox aren’t under strain and nozzle locks hop-up chamber in greater part (depends on ROF)
– In weapons with very high rate of fire (ROF) active brake solves multiple shots in semi mode
– The braking effect is the most powerful with high torque motor
– Remove from the gearbox: cut off lever, trigger, trigger contacts and trigger block, you will not need them with the Leviathan – V2MOBILE APPLICATION: you can install it here
DEVICE INSTRUCTIONS: you can download installation manual in English here[PDF, 4.33 MB]
– Leviathan – V2 drop-in module with wiring to stock, DeanT connector, 40A mini fuse and faston connectors to the motor
– CNC black trigger with zero path adjustment screw
– Screw with washer for securing device in the gearbox
– Black Leviathan sticker 40 mm
– Foam to keep device in place
– Installation manual in EnglishSAFETY WARNING:
– Installation of this device into the gearbox requires advanced technician skills!
– Please read these informations before installing your device to prevent any damage.
– Short circuit or incorrectly connected battery will cause immediate damage to the device which is not covered by the warranty. It can lead to fire or even battery explosion.
– Disconnect battery, when you aren’t using the gun! Otherwise you will fully discharge the battery. Because the device drains small amount of current from the bettery all the time.
– Don’t connect battery when gun pointing towards you, another person or an animal.
– Don’t modify, repair and put into any kind of liquids or thermal shock the Leviathan – V2.

VIDEO: Installation procedure Leviathan – V2 into the gearbox [English]

VIDEO: Installation procedure Leviathan – V2 into the gearbox [French language, ENG subs]

VIDEO: Leviathan – V2 review in the gun [French language, ENG subs]


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Wiring connection with a battery in the stock

9 reviews for Jefftron Leviathan – V2 w/ CNC Black Trigger (Rear Wired)

Based on 9 reviews
5 star
4 star
3 star
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1 star
  1. Richard (verified owner)

    Verified reviewVerified review - view originalExternal link

    Excellent drop in unit. Tested at 2 game days so far, functions exactly as intended. Precocking and active brake function excellently (provided your motor is strong enough). A good range of select fire functions and a scalable rate of fire is quite handy. My only gripe is with wire placement. The wiring has a tough coating that can be troublesome to form nicely to the gearbox and is attached to the chip-set in such a way that it can be difficult to keep clear of both the trigger and the hole for the center body pin. But other than that I would not hesitate to recommend this set to others. If you are going to install this yourself follow the included instructions very carefully, a little bit of patience will go a long way.

  2. Ryan (verified owner)

    Verified reviewVerified review - view originalExternal link

    Just installed today into a DBoys scar l. Main mod was the selector plate needed a bit of a trim. Works great no problems at all. App is so handy and easy to use. Highly recommended as an ETU, easy to install, setup and with the app makes it so easy to adjust and problem solve if needed.

  3. Hamish W. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Awesome unit

  4. Degan (verified owner)

    Verified reviewVerified review - view originalExternal link

    Stunning performance. Super stoked!

  5. George H. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Best thing I bought online

  6. Ryan B. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Second one of these I have bought. Can’t speak highly enough of them.

  7. George H. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Good and cheap

  8. Jamie Thompson (verified owner)

    Verified reviewVerified review - view originalExternal link

    Easy installation, Bluetooth tuning is so good and helps when fault finding when fine tuning special fire modes

  9. C/O michael (verified owner)

    Verified reviewVerified review - view originalExternal link

    Fitted this to my krytac spr mk2, was a little dremel work but wasn’t at all a hard thing to do, works a charm and so much happier with how the gun responds to my happy finger lol… Instructions included were clear and precise

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