YouTube - ‪SocomGear - M200 CO2 Bolt / Installation and Test Fire‬‏
Under Canadian firearm laws, above 5.7Joules & 500fps, the firearm is considered controlled...
Base on the 522fps average and 0.48g used. It yields 6.04 Joules aka a non-restricted firearm (probably)
So I guess you could technically import one if you have a firearm license and willing to register (if the long gun registry still exist when you import) as a controlled air gun.