Description
Double Eagle Series – Kestrel V2 Airsoft ETU-MOSFET
This is a Kestrel V2 electronic trigger unit (ETU) with MOSFET, listed in the Double Eagle series. The Kestrel V2 name is used for an app-controlled ETU for version 2 gearboxes, and it brings programmable trigger control and electrical protection to a standard AEG.
An ETU replaces the mechanical trigger contacts with a sensor and electronic switching. That gives a fast, consistent trigger response and removes the contact wear that eventually causes problems in a conventional AEG, while adding settings that a mechanical trigger cannot offer.
Features listed for the Kestrel V2
Retailer listings for the Kestrel V2 describe Bluetooth control through the E-Shooter app, with adjustable pre-cocking, trigger sensitivity, rate of fire control, and selector modes including semi, burst, binary, full auto and a delayed sniper mode. They also list a magazine shot counter, an active brake, battery protection with alerts in the app, a smart fuse, locked-rotor protection, sleep mode and firmware updates over the air.
Those listings give the V2 as made for version 2 (Tokyo Marui pattern) gearboxes, with cycle detection for standard and high-speed gear sets, and support for brushed and brushless motors. Please read the manual supplied with this unit to confirm its features, battery support and set-up.
Fitting
Kestrel V2 units are listed in both front-wired and rear-wired forms, so check the product images or contact us to confirm the wiring of this one before ordering. Fitting means opening the gearbox and installing the board and sensor in place of the trigger contacts, so have it fitted by an experienced technician if you are not confident doing it yourself.
Key features
- Kestrel V2 ETU with MOSFET
- App control over Bluetooth (as listed for the Kestrel V2)
- Adjustable trigger sensitivity and pre-cocking
- Several selector modes, including burst and binary
- Battery and electrical protection
- For version 2 gearboxes
Compatibility
Listed for version 2 gearboxes such as those in M4-pattern AEGs. Gearboxes from different makers vary, so some fitting work may be needed. Confirm the wiring layout and your battery type before ordering.
Spare parts are often specific to one manufacturer, and sometimes to one production version, so please compare this part with the one you are replacing, or contact us with your replica’s make and model, before ordering.
Care and maintenance
Keep the wiring away from moving gears and check it for chafing whenever the gearbox is open. Disconnect the battery after every game, charge LiPo batteries only on a supervised balance charger, and if the replica gets wet, remove the battery and let everything dry fully.
Who is it for?
It is for players and technicians who want to add app-controlled electronic trigger control to a version 2 AEG, or replace a Kestrel unit.
Please note: A battery, motor and fitting tools are not included. Please check the wiring of this unit against your gearbox before ordering.









