My colleague just pointed out to me that there is one exception, which could be if the remanufactured antique firearm doesn't meet the threshold for a firearm, meaning that it can't cause serious bodily injury or death. Then that would be a legal item. It would not be regulated and it wouldn't fall within the definition of an antique firearm if it's not itself a firearm, and the definition of firearm is set out in section 2.
On November 22nd, 2022. See this statement in context.