Plenty of ppl here in Canada own VSR 10s. What it comes down to in terms of legality is how they are brought into Canada. There are legal means and illegal means to do it.
If you're gonna order one from outside Canada, DONT DO IT unless you know entirely what you're doing.
Im not gonna go further into it here in the newb tank, but if you want more access to a variety of airsoft guns, get AVed and things will become much easier. Also, theres a lot of information here on ASC. If you're new to airsoft here in Canada, it would be wise to read them.