yes but not all those parts listed apply to the Scorpion. Even with a US muzzle device and stock it doesnt meet the requirements. If the mags were US.....
Since it's a blowback operated 9mm I'm imagining the bolt is part of the carrier and not separate like it is with an AR-15? If the bolt is separate from the carrier, that makes 13?
From what I've looked into, mechanically altering a foreign part, makes it an American made part. If you would have the barrel cut down 3/4 of an inch and re-threaded to 1/2x28, the barrel would then no longer be considered a foreign part.