FX Fx impact m3 super reg creep.

Ok guys I need some help or advice here. My fx impact m3 .22 cal have a super reg creep. This isn't your 5-10 bar creep that everyone is having. It came with the plastic piston. First reg is deleted so this is about the 2nd reg. So I set reg to 100 bar. Each time I take a shot, it slowly go back to 100 bar. I mean slow as in I have to wait like 20 seconds or more for it to slowly climb back to 100 bar. I leave the gun over night and when I wake up to check, the reg gauge increase to about 170 bars. And matches the tank pressure. So basically over night the tank pressure and reg pressure are the same. Wtf. So I took the reg out and clean inside the hole and clean the reg. Then I check and lube all the o rings and washers. Installed it back. Reg set to 100 bars. Let it sit over night and it's creep to bottle pressure again. So I order the m4 brass piston to replace the plastic piston. Install it and set to 100 bar. When I shoot. It quickly refill back to 100 bar like under 3 seconds. Unlike the piston piston that took forever to climb back to 100 bar. So I thought this should do it. Let it sit over night, wake up to see it reg climbed to 130 bar. So that's about 30 bar creep, but not 170 bar like with the plastic piston. So the brass piston did something but not enough. So wtf is causing these huge super reg creep? All the o rings look good, no nicks. Reg housing, piston, set screw looks good. Anyone else having this problem with the reg pressure matching the bottle pressure over night?
 
Just change all the orings on the regulator. Mostly the creep comes from the 2x1 NBR 90 O-ring on the setscrew.

They are a bit of a bitch to replace, the smallest nick in those can give you creep. Make sure to order a bunch of these because you will break some when installing them.

If you talking about the 2 small o rings on the adjustment screw, I don't have any and local place that sells o rings don't carry such small o ring. Only place I know have them is utahairgun but their shipping is $10 for such small o rings. Wondering if anyone have a problem with their reg pressure creeping to bottle pressure and what they did to fix it.
 
If you talking about the 2 small o rings on the adjustment screw, I don't have any and local place that sells o rings don't carry such small o ring. Only place I know have them is utahairgun but their shipping is $10 for such small o rings. Wondering if anyone have a problem with their reg pressure creeping to bottle pressure and what they did to fix it.
When I had or have creep, I always did a full regulator reseal. Eventually I was done with the AMP regulator and bought a Huma and never looked back.

I see you are from United States, maybe you can try it here : https://www.oringsandmore.com/

I got a whole box of o-rings for my Impact, if something happens I can change them without waiting.
 
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