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Paytrail - Oma maksutapa kaikille
37,90 €

Incl. taxExcl. tax

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Orders placed before 1 pm (Eastern European Time)
will be shipped out on the same (Matkahuolto, GLS) or following (Posti) business day. Orders that contain installations or upgrade services will be shipped out after the job is complete.

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These are estimated delivery dates. Please take into account that orders are normally not transported on holidays and weekends. The order can be collected during the opening hours of your nearest pickup point. You can track your order with the tracking number found in the order confirmation email.


The PicoAAB is the smallest MOSFET with an active braking on the market that is meant for electric airsoft guns. This unit is a new version of its predecessor PicoAB that has been updated with an electronic fuse known for the third generation GATE controllers. In addition, its mechanical and electronic features are significantly more advanced than in the previous Pico models. It can be installed into most electric airsoft guns, including the most powerful (M170) DMR rifles.

The PicoAAB continues the GATE third generation product family. Thanks to the new components the manufacturing mistakes from the previous MOSFETs have been removed. The durability of the MOSFET has been improved and it should withstand even the 14.8V LiPo/Li-Ion batteries! Additionally, the unit includes an over temperature protection that prevents the unit from overheating and short circuiting and thus protects the MOSFET itself, the motor and the battery from malfunctions! The PicoAAB is compatible also with systems that use a microswitch!


  • 3rd generation MOSFET
  • micro-switch compatible (digital signal control)
  • active braking
  • over temperature protection
  • protective coating


  • voltage range for the batteries 7.2V – 14.8V
  • easy to install – you need only to install the signal wire and change the old connections with conductor surfaces
  • comprehensive protection for the electrical system

The package includes:

  • GATE PicoAAB controller
  • signal wire (60 cm)
  • double signal wire (60 cm)
  • connectors for the battery and motor

MOSFET (Metal Oxide Semiconductor Field Effect Transistor)

The unit reduces power loss due to normal mechanical contact in the trigger switch. When using MOSFET only the signal current flows through the trigger switch and the actual running current goes directly from the battery to the motor. This prevents the burning of the trigger contacts, which is going to happen sooner or later, especially when using powerful batteries – the average lifetime for contact surfaces in an actively used gun is around one year. At the same time, the MOSFET unit enables the maximum power flow in the circuit without unnecessary resistance due to worn trigger contacts. This also gives you a higher rate of fire and a faster trigger response.

3rd generation MOSFET

The use of modern transistors and microprocessors has enabled the manufacture of small and reliable MOSFET units with microswitch compatibility.

Microswitch compatibility (digital signal processing)

With digital signal processing the MOSFET can filter out the vibrations of the microswitch during firing, which might cause excessive sparks and wear in the switch, lower rate of fire as well as heating of the motor, MOSFET, wires and battery, like with traditional MOSFETs. Since the MOSFET filters out the extra signal oscillation, there are no disadvantages of the vibrations created.

Active braking

In operation, the motor and the gears accumulate kinetic energy (energy from motion). The magnitude of the energy is mainly determined by the speed of the mechanical parts. The maximum speed is reached approximately after the fourth shot. For this reason, the motor doesn’t stop immediately after releasing the trigger, but continues to rotate for a moment. This is due to the accumulated kinetic energy; the more there is, the longer the motor keeps running “extra”. The active brake is a feature, which stops the running parts with the motor immediately after releasing the trigger.

Benefits of ON/OFF active brake:

1) No more double shots or double feeding. The gearbox performs only one full cycle with semi-auto. The piston always stays in the front position, which extends the lifespan of your gearbox.
2) Realism – You get the exact amount of shots with every pull of the trigger as you meant. The advantage can especially be experienced with semi-auto builds.

Over Temperature Protection

Over temperature protection protects the MOSFET unit, gearbox and the whole gun from electronic issues. The over temperature protection cuts the power going through the unit when it gets too hot.
When problems occur, it activates immediately when you pull the trigger. With the second trigger pull the system evaluates if it’s safe to continue or if it should shut down to prevent further damage. The feature protects the unit also from short circuiting, but it might not have time to activate before the transistors in the unit get too hot. That is why you should use a separate fuse with this unit. The warranty will not cover a fuseless unit.

Protective coating

The transparent protective coating protects the MOSFET unit from splashes, debris and minor damages.


GATE Electronics is a Polish company which made its debut on the airsoft market in 2008. Their goal is to provide high-tech electronics for airsoft players worldwide. GATE’s product range consists of MOSFET circuits for all kinds of uses, whether you want a MOSFET which only works as a MOSFET or a MOSFET circuit where almost everything is programmable. The GATE products are easy to install and reliable in use. The products are thoroughly tested and the company listens closely to feedback from end users to uphold the quality of their products.

24-month warranty

GATE MOSFETs have an extended 24-month warranty. It covers manufacturing defects and problems that come up in normal use. The warranty does not cover any fault that is caused by a faulty installation or misuse, like one caused by too high a voltage. You have to use a separate fuse, which protects the MOSFET from short circuits especially with more powerful LiPo batteries, when using NanoASR, -AAB and PicoAAB MOSFETs or SSR series MOSFETs which do not have an electronic fuse. The use of a separate fuse in other MOSFETs is recommended. You will find installation instructions on GATE's website or in Tradetech

Check the complete GATE collection here!

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