The gun is an AR veriant up here so it's restricted regardless.
Silly law I know! So yes the normal 15-22 is a rifle, with the pistol upper it would be classified as a pistol.
Anyway, as the laws are up here, we can have the pistol upper and swap to the rifle upper. Both need to be shot only at cert ranges.
Unless for some reason a 15-22 made it past customs and was sold and declaired as non-restricted.