Yup. AAC Omni, on a Colt AR15 SBR.
Not quiet, but not ear-bleeding loud.
Alas, taxes alone were as much as a Glock.
Did you do it through a gun trust?
Shocked the hell out of me when the class 3 guy said I could own a machine gun through my gun trust. Not that I have THAT kind of cash to throw around.