Product Description
- Durable CNC aluminum design
- Compatible with 12g CO2 cartridges
- Small and lightweight design
- High quality construction
- Compatible with TAGinn CO2 shells
FiSt-2 – is the filling station for Shell-HPA, Shell-PRO EVO and Shell Multi-R.
This fully redesigned filling adapter has several important improvements. The sealing method has changed, now no orings will be damaged or blown out during the CO2 tank replacement even if some pressure has left in the chamber.
No chance for leaking between nozzle and filling valve even when the weather is cold.
The tempered stainless steel nozzle is redesigned to fit perfectly our inlet valves. This fact is excluding the possibility of blowing out the inlet valves seal and minimizing the pressure loss during the filling process.
Now you can use this filling station for filling both CO2 and HPA propellants. In order to fill the device with HPA, just remove the upper part from the station, unscrew the CO2 adapter, and place the cap with nozzle on any 850PSI HPA tank.
Another amazing thing is that after the filling process, there are no pressure left in the adapter, you may remove it without degas.
If you use HPA devices only, you may purchase just the upper part of the device.
The new line of the shells and the FiSt-2 parts are color-coded for the more comfortable use. For instance, Shell-PRO EVO has the tan sector at its lower part as well as the CO2 chamber, so you may see that they are compatible. In other hand the Shell-HPA and Shell Multi-R has the red marking as well as the upper part of the Fist-2 which will be used for filling these launching shells with HPA.
Compatibility: Compatible TAGinn CO2 shells and other gas powered items capable of functioning with CO2
Material: Aluminum
PRO TIP:
This is from TAG on their Facebook Page.
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FIST2 Adapter – How to Prevent O-Ring Damage
We’ve received a lot of feedback from users about the central O-ring on the FIST2 adapter getting blown out or damaged. And yes, we know exactly why this happens – and how to avoid it.
Here’s what’s going on:
CO₂ is a tough gas. When FIST2 is under CO₂ pressure for 30–40 minutes, the gas fills the micro-pores of the O-rings. This causes them to slightly expand and lose their original shape temporarily.
The critical moment:
If you remove the used 12g CO₂ cartridge and immediately install a new one and pressurize again — before the O-rings have returned to their original shape — the central O-ring can pop out, get deformed, or even rip.
What to do:
1. After 30–40 minutes under pressure, degas the system and remove the used CO₂ cartridge.
2. WAIT 5–10 minutes. Let the O-rings “cool down” and return to their original form.
3. Only then insert the new cartridge and repressurize.
This small pause can save you a lot of frustration and O-rings.
We’re always working on improving our systems, but until then — follow this tip and your FIST2 will stay reliable much longer.