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Home » Airsoft Accessories, Attachments & Parts » AEG Internal Parts » Wiring Harnesses & Plugs

T238 ETU for Airsoft AEG Rifles
(Model: Micro Mechanical / V3 Gearbox)

ID: 16878 (MOSFET-T238-QUALITY-V3)
T238-QUALITY-V3
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T238

$49.99

Airsoft Authority Since 2001
Serving enthusiasts for over 25 years
Industry-Leading Warranty
Buy with confidence - 90 day warranty
Ships Fast from US Warehouses
Free shipping over $149 in lower 48 states
MAP ProtectedExempt From Coupons
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 Today Receive as soon as Fri Aug. 7
Model Options:
ModelBluetooth / V2 Gearbox$119.00
ModelBluetooth / V3 Gearbox$119.00
ModelLight Sensor / V2 Gearbox$69.99
ModelMicro Mechanical / V2 Gearbox$49.99
ModelMicro Mechanical / V3 Gearbox$49.99
ModelStandard - Board Only / V3 Gearbox$27.99
ModelStandard / V2 Gearbox$39.90
ModelStandard / V3 Gearbox$39.99

Description

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Product Description

Features

  • Multiple firing modes: Safe, Semi, double stroke, single shot, 3 round burst, 6 round burst, 9 round burst and full auto
  • Gel blaster designed auto-loading function runs the gel blaster magazine automatically for 0.5 seconds
  • Pre-cocking function allows zero trigger delay
  • Overheat protection
  • Low battery voltage protection
  • Active breaking
  • Fast response speed
  • Block-up protection stops the rifle from functioning if the gearbox is locked
  • Gearbox protection prevents over-spin
  • Supports up to 14.8V battery
The ETU V1.42 for V3 gearbox is a multifunctional MOSFET switch. Specifically designed for Airsoft, Gel Ball Blasters and other V3 gearboxes with semi-automatic and fully automatic functions.

Manufacturer: T238

NOTE: This product requires soldering and wiring. It is recommended that installation is undertaken by an experienced technician.

4 Customer Reviews

(Write a review)

by Timothy B. on 11/19/2025
"I love the idea of a micro switch MOSFET trigger unit at a low price, but it seemed too good to be true—until I saw this and couldn’t believe it until I got it. It literally didn’t work at first because it was too close to the sector gear, but now it works great. Still, I’d recommend saving a bit more for a Perun or a Gate Aster/Titan, or if you’re on a budget, go for an EShooter Kestrel, which is the same price but uses a switch instead of a light sensor, making it less finicky.

pros
cheep
improvs trigger response Hella lot
comes stock w deans connector
speed trigger compatible

cons
super finicky
if you get grease on the sensor d4/d5 it will not work
so over all a pain to get working but cheaper then other if you got time to tech it

so over all 4/5
by Omar B. on 05/01/2025
"This is a combined review of the mechanical V2 and V3. The V3s are great, absolutely no issues. However, every single V2 unit I had failed. It would not fire and the red light would blink rapidly. Otherwise I am very happy with its performance the V3 ones I have are still going strong. Have installed them in CYMA AKM and AKS74U, Echo1 RPK and ICS SG552. Yes although it is wired for an Ak top dust cover, you can add length to make it front or rear wired. Make sure you place the sticker underneath the board to prevent short circuit. For the gel blaster cables I just twisted them off since they are pretty thin, otherwise you can clip them. By far precocking is my favorite feature. For the price you cant really beat it. The Eshooter etu is an equivalent that I will also review later.
by Michael C. on 06/25/2024
"I like the price and it worked well with an 11.1V. I did have to do a little filing to mount it and rout the wires but nothing crazy. Programming was easy, but my biggest complaint was that the pre-cocking feature seems to do nothing at all. everything else was good.

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T238

About T238

T238 designs and manufactures unique, high-quality Airsoft parts and accessories