Don't use this because I prefer HPA over CO2
It works fine. You just need to adjust it to your own CO2 capsules.
I used Umarex myself, but those from another brand had a smaller tolerance.
You can adjust this with the center ring. (You should, since I took it apart for photos.)
Specs:
- Patent Pending Quick Change design
- Patent Pending auto puncturing mechanism provides consistently reliable puncture and eliminates seal damage
- Hardened tool steel puncture pin provides long life and reliable puncturing
- Multi-stage expansion chamber prevents liquid CO2 from reaching regulator
- For use with STORM OnTank regulators
- Milspec
- Type III Hard coat anodizing for wear resistance