JeffTron AR MOSFET (V2 Gearbox)

AR MOSFET by JeffTron for V2 gearbox replicas with rear-wired battery setup.

Perfect upgrade for AEG M4, M16, MK18 and other AR-style platforms.

MOSFET prevents trigger contact burning, boosts rate of fire and extends battery life.

Compatible with batteries up to 17 V, including 7.4–14.8 V Li-Po batteries.

Electronics protected with conformal coating against moisture.

Another product variants

  • Black
    On stock

29,01 € tax incl.

Anareus 25 let

For more than 25 years, we know what you like about airsoft.

Availability: In Stock at store

3 Items  

JT-MOS-AR

: JeffTron

Accessories

AR MOSFET by JeffTron

AR MOSFET by JeffTron is designed for airsoft AEG replicas with V2 gearboxes (especially M4 / AR15) and rear battery configuration. Thanks to the compact Micro MOSFET III integrated directly into the T-Dean connector, it ensures space-saving and easy installation. The wiring is prepared for direct connection to the original trigger contacts in the replica, requiring only basic soldering. This MOSFET is an electronic switch without active braking, replacing traditional mechanical switching via trigger contacts. This prevents contact burning, increases their lifespan, and also improves efficiency of the replica’s electrical circuit. It allows for higher rate of fire and longer battery runtime compared to standard wiring. It is particularly suitable for experienced technicians and service centers, as installation requires advanced knowledge of AEG replicas.

Types of JeffTron MOSFET Units

  • MOSFET II – External unit for springs up to M210.
  • Micro MOSFET III – Small external unit for springs up to M170.
  • AEP MOSFET – Smallest external unit for AEP pistols and SMGs.
  • MOSFET V2 – Internal V2 gearbox unit, space-saving, for springs up to M170.
  • MOSFET V3 – Internal V3 gearbox unit, space-saving, for springs up to M170.
  • AR MOSFET – Micro MOSFET III in T-Dean connector, for V2 trigger contacts, up to M170 spring.
  • AK MOSFET – Micro MOSFET III in T-Dean connector, for V3 trigger contacts, up to M170 spring.

Key Features

  • Boosts RoF and battery life:
    Compared to stock wiring.

  • Supports springs up to M170:
    Handles 90 A bursts and 35 A continuous fire (up to 30 seconds).

  • Battery compatibility:
    Supports up to 17 V, including Li-Po and Ni-xx.

  • Trigger contact protection:
    Prevents burning and increases lifespan.

  • Moisture resistance:
    Electronics coated for water protection.

  • Idle current draw:
    No power consumption when idle.

Technical Specifications

  • Designed for: AR15, M4, SR25, MP5, G3 (V2 gearbox with rear-wired battery)
  • Wiring: Complete wiring set with PTFE insulation (1.5 mm² and 0.34 mm²)
  • V2 gearbox: Requires working cut-off lever, selector plate, anti-reversal latch, etc.

Package Contents

  • AR MOSFET with wiring and T-Dean connector
  • Installation manual

Warning

Installation must be done by a professional who can solder and disassemble AEG replicas. Do not use a transformer soldering iron. While the MOSFET is compatible with most V2 gearboxes, 100% compatibility cannot be guaranteed.

ColorCombination
Gearbox versionV2
Connector typeT-Dean
MOSFETYES
Processor unitNO