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Home » Airsoft Accessories, Attachments & Parts » AEG Internal Parts » MOSFET & ETU

JeffTron MOSFET for Version 3 Airsoft AEG Gearboxes
(Type: No Wiring)

ID: 93719 (MOSFET-JT-MOS-S4)
JT-MOS-S4
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JeffTron

$29.00

Airsoft Authority Since 2001
Serving enthusiasts for over 25 years
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Buy with confidence - 90 day warranty
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Free shipping over $149 in lower 48 states
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The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Order within 8 hours 59 minutes Receive as soon as Wed Jul. 29
Type Options:
TypeNo Wiring$29.00
Typew/ Rear Wiring$39.00
Typew/ Top Wiring$43.00

Description

Specs

Reviews

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Product Description

Features

  • MOSFET build on SHS trigger contacts
  • Easy to install, compatible with most version 3 gearboxes
  • Designed for springs up to M160 (equivalent for current 75A single shot fire or 25A burst fire for max. 30s)
  • Specified for common batteries up to 17V (Ni-xx 8.4 - 12V, lipol 7.4 - 14.8V)
  • No current consumption in the idle mode
  • No sparking on switch contacts
Professionally made MOSFET designed for airsoft electric guns (AEG).
Device increases gun rate of fire and battery holds longer than with basic wiring.
The MOSFET fully integrates inside a version 3 gearbox instead of the original trigger contacts, compatible with Tokyo Marui standard.

Manufacturer: JeffTron

3 Customer Reviews

(Write a review)

by Omar B. on 09/21/2024
"Fit this into a classic army b&t mp5k. I resused the old wiring to retain the fit, except I swapped the polarities and appropriately atrached a xt30 connector for the battery. It doesnt have cutoff issues thankfully. I use a shs steel v3 one. Shoots real fast with an 11.1v.
by Emilio L. on 01/02/2021
"I put this into a cyma aks74un/ cm045a. The part of the trigger trolley that interacts with the cutoff lever does have enough material to cutoff properly. This causes the semi auto mode to shoot multiple bbs in one trigger pull. To fix this i glued a gift card where it needs to me to trip the cutoff lever and trimmed it to fit. I also cut 2-3 coils from the trigger trolley return spring. I put in an shs high torque motor and you may need a stronger spring. This mostly fixes the problem.

Pros
-fairly easy to install
-good price
-i can use my 11.1v lipo
-i got it to mostly work but it still needs to be refined

Cons
-may need modification to work in your v3 gearbox
-no instructions included, but its pretty simple to install
-i still get some overspin if i pull the trigger halfway
- you might need a new cutoff lever
-you might need a stronger spring

Overall, id just buy an active braking mosfet instead and a nicer motor. If you buy it just check how the cutoff lever interacts with the trigger trolley and fix any issues.
by Weston G. on 02/03/2021
"Have the same problem as Emilio L. the cutoff lever doesnt catch, it will shoot multiple times in semi i did find it worked fine with my 8.4 but anything above that causes an issue, full auto is also affected by this it will shoot then the mosfet will shutoff which causes it to shoot in a burst, the product needs to be refined a little but there is potential

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JeffTron

About JeffTron

Jefftron company was founded in 2011 as a manufacturer of electronic devices for Airsoft electric guns.