Chimera Mk.II FET
For V2 Gearbox
For V3 Gearbox
For ACR Gearbox NEW
Spectre Drop-In FET
For V2 Gearbox
For Next-Gen V2 GB
Spectre MK.II FET
For V2 Gearbox NEW
For Next-Gen V2 GB NEW
Spare Parts
Chimera Trigger Boards
Wires and Connectors

Indestructable AEG Gearsets

Powerful Computerized FETs

Innovative Gearbox Upgrades

Spectre Mk.II FET
For Next-Gen V2 Gearbox

The world's first Bluetooth FET for Next-Gen V2 gearboxes, making it the most advanced and programmable AEG controller. Utilizes FOUR powerful next-gen MOSFETs and fits completely inside the gearbox, ideal for AEGs with no room for an external FET. No soldering required!

Price:  $100 USD
Available October

Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2
Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2
Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2
Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2
Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2
Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2
Airsoft AEG MOSFET - BTC Spectre for Next-Gen V2

Advanced Technology
  • Can handle power surges up to 9000 watts and even run on car batteries.
  • Fully computerized with hi-speed dual ARM Cortex-M0 and PIC18F26K22 microprocessors.
  • Multiple internal layers of heavy copper traces for greater current capacity.
  • Short circuit detection and voltage spike suppression circuits to protect the controller.
  • Smart thermal management reduces heat buildup during sustained firing on certain settings.

Smartphone Bluetooth Interface
  • Quickest and most versatile method of programming AEGs. No complex trigger inputs or opening the AEG.
  • Program your AEG mid-skirmish in seconds without any tools or manual, just your smartphone only.
  • User-programmable passcode and a shortened signal range prevents any unauthorized setting changes.
  • No need to "pre-connect" to the Spectre in the smartphone's settings. Is accessed instantly from within the app.
  • Fully certified by the FCC (USA), IC (Canada), CE (Europe), and 日本電波法 (Japan).

Essential App for Techs
  • Smartphone app reports battery voltage, current draw, and FET temperature. Basically a "wireless multimeter".
  • Reports timing of shot cycles and RoF, which helps fine-tuning the AEG to achieve the best possible cycle rate.
  • Diagnostic functions that display which microswitches are pressed in real-time and also what error has occurred.
  • Records total number of shots fired since the battery was connected and also for each trigger pull.

MOSFET Trigger
  • Eliminates damaging electrical arcing of the trigger switch contacts.
  • Lower resistance compared to mechanical switching, increasing motor current.
  • Driven by dual IRF671812PBF, a compact yet powerful next-gen MOSFET.

Dynamic Braking
  • Eliminates the motor spin-down time to prevent the piston from over-traveling.
  • Assists in keeping the piston properly reset to reduce stress on the gearbox.
  • Prevents double firing on semi-fire in extremely high RoF setups.
  • Also driven by dual IRF671812PBF MOSFETs.

Cycle Completion
  • Gearbox always completes the last cycle regardless of when the trigger is released.
  • Assists in keeping the piston properly reset to reduce stress on the gearbox.
  • The motor will always have the smoothest and most consistent startup.
  • Allows the anti-reversal latch to be removed.

Configurable Triple Fire Select
  • All three fire select positions can be individually configured, for a total of 729 (9x9x9) possible configs.
  • Available options for each selector position:
    • Safe
    • Semi fire
    • Auto fire
    • Burst [non-interruptible]
    • Burst [interruptible]
    • Burst/Auto hybrid [burst non-interruptible]
    • Burst/Auto hybrid [burst interruptible]
    • Semi/Auto hybrid
    • Semi/Auto ramping
  • Non-interrupt burst completes a burst even if the trigger is released, whereas interruptable stops mid-burst.
  • Burst modes can be programmed to fire 2 - 10 shots per burst. Each selector can have different burst amounts.
  • "Burst/Auto hybrid" fires in burst and switches to full auto if the trigger remains held down.
  • Hybrid modes can be programmed to have no transition delay or a 0.2s - 1s delay.
  • "Semi/Auto ramping" fires in semi and switches to full auto if the trigger is rapidly tapped.

Hardware Semi-Only Lock
  • Can only be enabled/disabled by using a soldering iron to remove/bridge a solder jumper.
  • Conforms to semi-only laws that forbid AEGs with readily accessible means of bypassing semi-only.

Realistic RoF Control
  • Both fire select positions can be individually configured with a different RoF.
  • Every cycle runs at full speed and pauses between each shot to reduce the RoF.
  • Provides the most realistic feel and sound compared to any other forms of RoF reduction.

Adjustable Precocking
  • Precocking stops the piston in a compressed state so the next shot is near-instantaneous.
  • The precocking is fully adjustable and thus also compatible with short-stroked pistons.
  • Offers improved realism and trigger response for sniper or low RoF builds.

Adjustable Firing Interval
  • After a semi or burst fire, ignores trigger inputs for a certain amount of time. Programmable up to 1s.
  • Helps restrict rapid firing in specialized builds, such as limiting a sniper build to firing one shot per second.
  • Lower intervals can also help prevent accidental "bump firing" on semi when using a feather trigger.

LiPo / LiFePO4 Monitoring
  • Monitors LiPo and LiFePO4 batteries to cutoff power before overdischarge occurs.
  • Simply set the number of cells and the controller will use the proper cutoff voltage.

Programmable Digital Fuse
  • Sensor-based current monitoring negates the need for a physical fuse.
  • Cutoff threshold fully adjustable to help protect low-output batteries from over-current damage.

Gearbox Reliability
  • Eliminates the trigger jam normally caused by the cutoff lever stopping at a certain position.
  • The cutoff lever mechanism is no longer needed, greatly reducing the chances of semi-fire related issues.
  • The anti-reversal latch can also be removed to make gearbox reassembly much easier.

Electrical Ratings

Minimum Maximum
 Supply Voltage 6.5 16 V

Continuous Peak
 Motor Current 60 500 A

 FET Resistance 0.001 Ω


Length Width Height
 Board Size 1.7 1.1 0.5 inch

Gauge & Type
 FET Wiring 16AWG Ecowire(mPPE)

Included Items
  • Specter FET (Next-Gen V2 Gearbox)
  • Deans-Tamiya Adapter
  • Product Manual
Smartphone/Tablet App

iPhone Requirements
▪ Hardware: 4S or newer models
▪ Software: iOS 7.0 or above

Android Requirements
▪ Hardware: Any with Bluetooth 4.0 or above
▪ Software: Android 4.3 or above

Product Manuals

Spectre Mk.II (Next-Gen V2 GB) Manual

Spectre Mk.II (Next-Gen V2 GB) Trigger Programming

Spectre Mk.I (Next-Gen V2 GB) Manual
(Previous Version, Discontinued)
Is the Spectre compatible with batteries that use Tamiya mini connectors?

A Deans-to-Tamiya adapter is included to allow use of batteries with Tamiya mini connectors.

Is the Spectre compatible with both front and rear wiring?

Yes, but the Spectre's stock wiring is intended for rear wired setups. Installing it in a front wired setup will require the wire lengths to be re-adjusted.

How durable are the included wires?

The included motor/gearbox wires are Ecowire(mPPE) insulated, which is tougher than typical PVC and silicone wires, as thin as Teflon/PTFE wires, and yet very flexible. This thin yet durable Ecowire insulation allows 16AWG wiring to easily fit in the gearbox without having to resort to stiff Teflon wires.

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