Expansion chamber or Reg?

[jbtamu1011]

I just recently got this black gen4 Micromag. My question is can I use hpa on this as it's setup? Of course I'll get all the lines on first. 😜 Also, is this a reg or an exp chamber from Proteam? Thanks guys and gals!!

[Xyxyll]

You can most certainly use HPA on this. Have at it! And that appears to be an expansion chamber.

[Walking Stick]

Definitely a PTP/Benchmark 4-stage expansion chamber. It was meant to help with CO2 thermal expansion but you won't have any issues using HPA with it. There's a write-up or video on MCB, IIRC, that explained the PITA-disassembly if you were so inclined to gut it (free-er flow and a few ounces less weight).