The firearms laws are enforced by the rcmp.
Have fun telling them its an opinion when you get charged lol
They would have to prove their opinion to be correct in court. Aside from a demonstration on how to build and operate a time machine that may be hard to do. The law says they're legal. They were designed for a 10/22 which was conceived decades before the charger pistol.
Just like glock mags at 10rds are legal to use in a pistol caliber rifle. And 10 rd AR pistol mags are legal for use in a rifle and AIA 10 rd mags can be used in an M14. How can a magazine be designed for a firearm that was invented decades later? It would never stand and that's probably why no charges have been reported afaik. I'd happily donate as much as I could for a "go fund me" to help with the legal fees.
Remember how they just got burned for posting on their site that 858s and swiss arms rifles needed to be registered despite the fact c71 has not passed into law. They are enforcers not lawmakers.