?

I asked Huma what size o-rings were on the Impact regulator, and they replied that they're 4mm x 1.5mm - 70 shore. I "only" ordered 50 :)

Rusty



That's just the internal and external for the piston, not the body.


I'm assuming the outside is the same size as stock regulators as well, but I just asked them to make sure. 

Rusty