With the greatest respect, Madame Clarke, most of the firearms capable of receiving a magazine are “designed”. There is nothing different about the feeding mechanism of a magazine when it feeds a round of ammunition into the chamber. There is nothing different about it, whether it can hold five or seven rounds.
Under Canadian law, there is no requirement at all to have a licence. Anybody can go into any store and purchase a magazine for a rifle without a firearm licence.
Am I correct?