Contact Us Tel:(626) 286-0360 Store Locations
Phone Support M-F 7am-5pm PST
Browse by Type or Category
Free Shipping for Orders over $149. EPIC DEALS released daily!

GATE Airsoft MERF 3.2 Burst Advanced MOSFET Unit (Model: Retail)

ID: 44781 (MOSFET-MERF32)
GATE Airsoft MERF 3.2 Burst Advanced MOSFET Unit (Model: Retail)
Hover or touch above to zoom
Youtube preview Product image 1 Play Youtube video


This item is currently Sold Out

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.
Model Options:


  • Active Braking:(Enhanced mode) Stops the motor as soon as the switch is released, prevents spring compression or extra shots after the shot in semi-auto mode
  • Protections for Li-Poly/LiFePO4/Li-Po/Li-ion/Li-Fe/NiCd batteries; short-circuit protection; over temperature protection; eliminate electric arcing(Enhanced mode only); Eliminates power loss and electric arc damage from mechanical switch
  • Configuration can be done with included programming button or AEG trigger switch depending on operating mode
  • MOSFET integrated circuit for higher efficiency and faster trigger response(enhanced mode); Rate Of Fire Control: Smart Trigger allows rate of fire control from 30%~100%. The first shot in full-auto or burst is always 100% ROF for the fast trigger response
  • Suitable for most AEGs and replace mechanical trigger switch; Compatible with most AEG motors and battery packs from 3.2V to 15V
  • 3-Round Burst Firing Mode: Allows standard SAFE/SEMI/AUTO shooting modes to be converted into SAFE/SEMI/BURST (simple/enhanced mode) or SAFE/BURST/AUTO(enhanced mode); trigger can be released early in Burst mode to do shorter bursts
  • Electronic resettable fuse, self-reset after the trigger is released for the ease of use
  • CLICK HERE for Instruction Manuals
The Gate MERF 3.2 Mosfet Unit is the Third generation of airsoft Mosfets from Gate. This system allows for increased trigger response time, loss-less rate of fire adjustment, adjustable 3-round burst mode, active motor breaking, and protects Batteries. This Mosfet is able to handle up to 15 volts, has 10 different functions, and operate in 2 modes: Enhanced mode and Simple mode.(1) Enhanced mode. will require you to do some gearbox work and soldering but will allow you to take full advantage of the Features of this awesome Mosfet.(2) Simple mode. No modification to your AEG is required just plug and play, but will not stop Trigger contact Arcing.This Mosfet is compatible with most AEG's, including upgraded AEG's.

Compatibility: For most gearbox and AEG platform.
Dimensions: 70 x 20 x 10 mm
Maximum continuous current: 35A ( 50A for 3 min )
Stand-by current: 0.15mA
Resistance: 2.4 mOhm
Weight: 15g
Operating modes: (a)Simple mode (b)Enhanced mode
Manufacture: GATE / Poland

MOSFET: It eliminates any loss of energy which occurs while mechanical contacts touch each other. It also makes sure they won't burn unavoidably - the average life of mechanical contacts is 1 year. Thanks to this electronic circuit the battery energy is not lost while burning contacts but directed straight to the motor. In this way we get bigger rate of fire which results in quicker reaction of the trigger.

Active Breaking: The motor and gears at work gather in the kinetic energy. This energy depends mainly on their speed. The maximum speed is reached after 4 shots. For this reason when you release the trigger the motor will not stop immediately - the energy accumulated in it, depending on the amount allows on few extra shoots.

1. In the sniper rifles, and during the shooting on SEMI, the brake will not allow to compression spring after the shot. The piston will always stop at the front position, so that will increase gearbox lifespan.
2. 2. To rise of realism. After releasing the trigger in real guns are not fired extra bullets, as happens in AEG replicas. We do not waste ammunition.

Electronic Fuse:
SCP Short Circuit Protection In the case of short-circuit installations, in milliseconds the system disconnects the battery. This is necessary for the protection of the Li-Poly. Shorting Li-Poly battery can cause permanent damage, destruction or even explosion of cells!
OTP Over Temperature Protection Built-in thermometer measures the temperature of the system. If it exceeds a critical value, the system shuts down to prevent its destruction.
UVP Under Voltage Protection Protects rechargeable Li-Ion: Li-Poly / LiFePO4 and NiCd against excessive discharge.
The fuse is reset immediately after the trigger is released. After another of his press, in milliseconds, executes a series of measurements, which determine whether the battery can be safely connected to the replica.

Smart Trigger: Allows for faster trigger response. It cooperates with the ROF Control system. During the first shot Smart Trigger sets ROF Control to 100%. After the first shot it is set of pre-programmed value, eg 30%. As a result, the first shot is fired with full rate of fire, and next shots with a reduced ROF. The best effect can be achieved using a battery with higher voltage than the standard. Then we will get faster trigger response at the same rate of fire as in case of standard battery

About GATE

Since 2009, GATE company has been designing and producing the most innovative AEG Control Systems and MOSFETs. GATE has premises located in Cracow, Poland with products successfully entered global markets and are being sold in more than 30 countries.

8 Customer Reviews

(Write a review)

by Cole W. on 08/23/2022
"AMAZING mosfet for beginners who don’t wanna pay big money! Sure you don’t have some of the cooler functions but being able to switch firing modes and rps is Insane for the price and there are so many other functions to!!
by Bill S. on 04/03/2021
"i love this thing. so much potential! lots of features. i use this on my cyma 16a4 for 3 round burst. when using burst you must take your time to set up the right burst time because it has to be precise. if its off it wont be 3 round burst every time it might only be 2 because of gear ratios and motor armatures. if you take your time setting up the burst if thats what you're after, this will give your gun amazing functionality
by Felipe E. on 12/07/2018
"Relatively easy to install (enhanced), first time cracking open a gearbox and installing a mosfet. The settings are easy to navigate just follow the instructions on the PDF download. No noticeable trigger response but I know the trigger contacts will thank me lol. My gun was locking up on semi auto until I turned off smart trigger and now everything works great, I highly recommend this mosfet.

Comments & Community

Discuss about GATE Airsoft MERF 3.2 Burst Advanced MOSFET Unit (Model: Retail) with your friends and fellow shoppers!

Have an urgent question about this item? Contact us, our resident experts are standing by to answer your questions!

Warning: California's Proposition 65

This item is currently Sold Out. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.

Customers who bought this also purchased

Parts and accessories may not be compatible with the product displayed on this page. For compatible parts/accessories, see the You May Also Need section and please verify details on the product description page.

Search tags for related products