All Vz rifles were made from military recievers, CZ milled out the original markings and made sure all the holes that made it full auto were sealed shut. Extra care was done to make sure they are now newly manufactured and not some converted hack job. Wolverine is the sole imported for the CZ ones. Old CZs had the orignal markings intact, but since the FSN-01 fiasco, they made sure newly imported ones were as clean as possible.
Marstar has the CZH-2003, which is made by CZ Hermex, and the FSN-01, which was done by another firm but had never been imported before.
For the FSN-01 case, they were done similarly, but the RCMP was not satisfied enough.
As for the CZ Hermex ones, they are pretty close to the original select fire version as far as I can tell, But back then they were satified with what was done on those. I do not think Marstar will be importing any more VZ rifles now since now I can see the RCMP getting anal on the CZ Hermex ones.