Huben Huben GK1 arrival day🍻

Another update- I was unsure if my relatively inexpensive Orcair Thunder (255$ on sale now on Amazon) would be enough for this pistol and it did not break a sweat going to 4500psi. For now, that is good enough for me.

What are you all using?
I use either a GX cs4i or Tuxing txedm 042.
I go to 5000 psi with both
the Tuxing was only $360 delivered
 
It is surprisingly loud without a moderator/suppressor. Not ear gear level but definitely not neighbor friendly unmoderated. Being new to air guns, it honestly surprised me.
Try opening the power knob close to full and then let us know if using gk1 without suppressor does not require ear gear.