Tuning Anyone recognize this reg

Took the Caiman X apart to take a look around & check things out. Anyone recognize this regulator? Looks similar to the Huma Ataman regulator. Didn’t get it in the picture but on the back side there’s a small allen that may adjust it? But not sure. I’m wonder what kind it is so maybe I can look into getting a tester & maybe raising the regulator pressure later on. 
B14489E2-CE4B-411E-952F-07933F4EDE54.1631236616.jpeg