So far, the RCMP have not requested to see mine yet.
As I understand, I have the 3rd, legally built/registered Semi-Auto STEN Mk. II in Canada. Fires from a closed bolt using a striker mechanism.
I was unable to get a SAS-3 Bolt out of the US, so I had to build mine from scratch. Took about 100 hours of machining time. Ish.
I only ever got it to fire 3 shots in a row....but it sure looks cool.
It has been inspected by the NS CFO (3 times) and if the RCMP ever ask me for it, well, they know where to find me.
There is an OLD thread somewhere in the Milsurp section....