Summary: NFA applies to silencers that have not moved in interstate commerce, no matter what state law says.
The good news: only probate, no jail time.
The bad news: prohibited possessors for life. (And probably financial ruin.)
https://www.omahaoutdoors.com/blog/tenth-circuit-cans-unregistered-silencer-sales-suppresses-state-law/?fbclid=IwAR1sWQ8GGYuS_IbnAg9An2upoIgxbADiN7F0MExAPNrND_IF28rv5jimcW0
The good news: only probate, no jail time.
The bad news: prohibited possessors for life. (And probably financial ruin.)
https://www.omahaoutdoors.com/blog/tenth-circuit-cans-unregistered-silencer-sales-suppresses-state-law/?fbclid=IwAR1sWQ8GGYuS_IbnAg9An2upoIgxbADiN7F0MExAPNrND_IF28rv5jimcW0