Jefftron Airsoft MOSFETs

JeffTron was founded in 2011 as a manufacturer of electronic devices for Airsoft Electric guns. Based in the Czech Republic, they produce some of the most popular Airsoft AEGs and accessories on the market. Known for their high quality, durability, and performance - JeffTron products are used by Airsoft players all over the world and are trusted by some of the most prestigious Airsoft teams. Read more >>

JeffTron MOSFETS

With many different models available, JeffTron has a MOSFET for everyone, including the JeffTron Mosfet Solo, JeffTron Active Brake II and the JeffTron Leviathan EVO 3.

MOSFETs give you contactless switching of any circuit. For AEGs, it is used for contact closure while the trigger is pressed.

Advantages of MOSFETS

There are many advantages to using a MOSFET:

• Contactless switching: No more damaging of trigger contacts by high currents.
• Better trigger response: The AEG will fire almost immediately when you pull the trigger.
• Higher ROF (Rate of Fire): You can run higher-voltage batteries without damaging the trigger contacts.
• More efficient power delivery: Less energy is lost through the trigger contacts, helping your battery go further.

Can't find what you're looking for? Not a problem, get in touch with us, and we'll see if we can order it in for you.

What's in the JeffTron Range

• MOSFETs – standard MOSFETs for V2 and V3 gearboxes, including versions with wiring, wired to stock and above the gearbox, the Mosfet Solo V3, the high-draw Mosfet II and the compact Micro Mosfet II.
• Active brake units – Active Brake MOSFETs for V2, the Active Brake II and the Micro Active Brake II, with or without wiring.
• Leviathan – Leviathan Optical V2 units in front and rear-wired versions with trigger, including RFTS and limited edition versions, plus the M4 bolt catch micro switch and dual pressure pad switch.
• Other electronics – an AEP MOSFET, Switch Brake micro switch replacements, a hair trigger adapter and wire holder clips.
• Triggers – CNC triggers for M4/M16 in speed, edge, flat and curved styles.

Choosing a JeffTron Unit

Basic MOSFET or active brake? A basic MOSFET protects your trigger contacts. Active braking stops the motor quickly after each shot, which can help with trigger response, particularly on high-speed builds.

Wiring: versions "with wiring" come ready to install, while others suit players who want to wire their own. Wired-to-stock versions suit guns with a stock-mounted battery.

Leviathan: these units replace the trigger assembly and use optical sensing, so check the gearbox version and wiring direction your gun needs.

If you're not confident working on a gearbox or soldering, ask a qualified tech to install your unit. Find more in our leads and connectors, 11.1v LiPo batteries and electrical parts and extras.

After installation, test your gun on semi and full auto before taking it to a game, and keep the instructions that come with your unit in case you need to check wiring or settings later.