I can confirm this, a while back they did make it through but the CBSA, not being staffed by retards, realized that these guns we're just dressed up "regular" guns.
Besides, the Thunder Maul is really a horrible JG M4, not worth the trouble.
Oh, and FYI, we don't "bypass" the law, we work within it. The info on how to import restricted items is mostly in the AV restricted section of the site though. 'Cause, yeah, being AV'ed grants access to the classifieds and retailers but also subforums non-AV people can't see.