Stylized logo featuring an octopus design for a Canada airsoft company logo
Stylized logo featuring an octopus design for a Canada airsoft company logo

JEFFTRON ®

Optimize your build with advanced Jefftron mosfets at Canada's leading tech shop. Buy the ultimate electronic upgrades to dominate any Canadian field.

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  • JEFFTRON LEVIATHAN AIRSOFT MOSFET EVO3 FOR ASG EVO

    JEFFTRON LEVIATHAN AIRSOFT MOSFET EVO3 FOR ASG EVO

    JEFFTRON LEVIATHAN AIRSOFT MOSFET EVO3 FOR ASG EVO

    $200.00 CAD
    Sale price  $200.00 CAD Regular price 

Learn more about JEFFTRON ®


Founded in 2011 in Hermanuv Mestec, Czech Republic, Jefftron has built a strong reputation as a specialist in electronic devices for airsoft AEGs. Their flagship product, the Leviathan, is a processor-controlled programmable MOSFET with Bluetooth connectivity — it lets you adjust rate of fire, enable pre-cocking, activate active braking, and monitor your gearbox's statistics, all controlled directly from a smartphone app on iOS or Android. This level of control goes well beyond a standard MOSFET, giving experienced players and tech-focused builders precise tuning options that used to require far more complex wiring or programming knowledge. Jefftron offers multiple versions of the Leviathan, including optical trigger variants and configurations for specific wiring setups (front, rear, or stock-wired), so it's worth confirming which version matches your build. At District Airsoft, we carry Jefftron electronics for players looking to take their AEG's electrical system to the next level.

COMMON QUESTIONS

Frequently Asked Questions about JEFFTRON ®

Where is Jefftron based, and how long have they been making airsoft electronics?

Jefftron was founded in 2011 in Hermanuv Mestec, Czech Republic, and specializes in electronic devices for airsoft AEGs.

What is the Leviathan MOSFET?

The Leviathan is Jefftron's flagship programmable MOSFET, using Bluetooth connectivity so you can adjust rate of fire, enable pre-cocking, activate active braking, and monitor gearbox statistics directly from a smartphone app.

Do I need to know how to program to use a Leviathan?

No — the app-based control makes tuning straightforward without needing separate programming knowledge, though installation still requires basic gearbox wiring know-how.

Are all Jefftron Leviathan modules the same?

No, Jefftron offers multiple versions, including optical trigger variants and different wiring configurations (front, rear, stock-wired) — confirm which version matches your build before ordering.