I was surprised. I figured the customs guy would laugh at me but nope. How it was explained to me (and I'm still checking into it) my buddy sends me the weapons and touching base with customs the weapons either get sent to me and I bring them to customs in the unopened box with paper work (which still seems a little off to me but thats what he said) or I get the weapons sent to customs then go do the paper work and pick them up (has to pass regulations, rifles can't have larger than 5 round mags, pistols 10 etc..)
Its odd that in some regards Canada has much more restrictive weapons laws than the US, but much less restrictive in other regards. That list of prohibited weapons is one example of Canada being more restrictive, while your ability to import those pistols is an example of being less restrictive.