The CFC and RCMP have said that if you leave the barrel on there longer then 30 days, you're in trouble. There has been a debate/clarification that "if the barrel change does not change the 'classification' of the firearm, then verification is not required.", but, who knows.
Now, the "welded folding stock" is what is at the heart of the classification change.
The CFC says "if it was EVER DESIGNED to fold, then IT IS a FOLDING stock, even if it currently CAN'T FOLD!?", WTF!? Nowhere in the firearms act/criminal code does it say the word "originally designed to fold" when it talkes about making a prohib/resitrcted firearm. It just says "designed to fold when installed on rifle, blah blah". But, if it's welded first, then you can't say it's designed to fold when you installed it can you??
Crazyness.
-Jamie M.