From the updated RCMP website:
Air guns that are replica firearms.
These are air guns not powerful enough to cause serious injury or death, but designed to resemble a real firearm with near precision. Replica firearms, except for replicas of antique firearms, are classified as prohibited devices.
In particular, some air guns commonly known as air soft guns may fall into this category. These are devices that have a low muzzle velocity and muzzle energy, and that usually discharge projectiles made out of a substance such as plastic or wax rather than metal.
An airsoft gun, firing a .20g 6mm plastic pellet with a muzzle velocity below 111.6 m/s (366 fps), and resembling with near precision an existing make and model of a firearm, other than an antique firearm, is a replica firearm and therefore a prohibited device.
Although replica firearms are prohibited, individuals may keep those they owned on December 1, 1998. You don't need a licence to possess them, and they do not need to be registered. However, you cannot import or acquire a replica firearm. If you take a replica firearm out of Canada, it will not be allowed back in.
https://www.rcmp-grc.gc.ca/en/firearms/ ... s-firearms