GL are under the Controlled Goods Act, soon probably a no go.
If ERE Systems can/is going to manufacture and sell an M203 here something like this should be possible ...
hxxp://eresystems.com/coming-soon-m203-grenade-launcher/
There is no import permit or dealing with DEFAIT by manufacturing in Canada. Trust me, CGD will be there front and center saying no when there is no approved prescribed purpose. Civilian market in not a prescribed purpose.
I'm not sure if the standard T-97 has the bayonet lug to begin with...
nope