The tag is incorrect. SG actually refers to Sturm Gewehr, or assault rifle.
The American importer mistakenly called it SG because all the other rifles are true SG's
The correct term is SAN 511, from a German word I dont know.
The cost is supposed to be about $8000or so.
The extra position on the selector switch is for bolt lock.
I've just got home (~12:30PM, so I'm not sorting photos now. I'll put up more soon.
I was at the Sig booth and they had a US made gun on display more prominently. But of course that cannot be exported, so when I mentioned that, they showed me this.
They are now aware of Canada, so we might see them sometime.