Micro FCU · 1 or 2 solenoids · beta
Open-HPA Secure Bomb
The smallest controller: one shot per pull, no fuss.

Secure Bomb is a micro FCU for HPA replicas built for CQB and SQB. It is plug and play: wire it to the solenoid and battery and it works. It only has semi mode: every trigger pull is one shot, with instant response and a rate-of-fire limit that protects the system.
It is not programmed from any app and does not connect over WiFi or Bluetooth: there is nothing to set up.
There are two versions, both semi only: single solenoid, for most engines, and dual solenoid, for the Polarstar F2, Gate Pulsar D, D2 and other dual engines.
Coming soon: compatibility with Universal Trigger, to use a push button or a magnetic or optical sensor as the trigger.
Coming soon
Beta testing program
We'll soon open the beta testing program. You'll be able to sign up with your details, pay for the device and receive it to test it before it gets certified. Beta units are prototypes under testing, without CE certification yet, meant for players who want to help us polish them.
Sign-up isn't open yet: we'll announce it here.
In HPA Commander


Features
- For CQB / SQB: single shots with rate of fire
- Plug and play: no app or connection, nothing to set up
- One shot per pull, instant response
- Protective rate-of-fire limit
- Dwell selectable at power-up (8–20 ms)
- 1 solenoid or 2 (Polarstar F2, Gate Pulsar D, D2)
- Tiny footprint
Specs
| Use | CQB · SQB |
|---|---|
| Versions | 1 solenoide · 2 solenoides (Polarstar F2, Gate Pulsar D, D2) |
| Fire mode | SEMI |
| Setup | Plug and play |
| Connectivity | — |
Get HPA Commander
Info sheet in HPA Commander
FAQ
Which version do I need?
The single solenoid one fits most engines. The dual solenoid one is for dual engines such as the Polarstar F2, Gate Pulsar D or D2.
Is it set up from the app?
No. It's plug and play with no wireless link; HPA Commander only shows its info sheet.



HPA Commander