Correct, tactical stocks cannot be shipped to Canada... that being said try these places:
http://www.fabsports.ca/mainang.html
Hmm there was one other placed I found tactical stocks for 10/22's but can't seem to locate the link now...
or hold off for this:
http://www.frontierfirearms.ca/index...oducts_id=2688
Have fun, they are a super cheap to shoot tactical solution.
Cheers!