The way I understand the CCC, anything that reduces the report of a firearm is prohibited. Back to the old "Is it a firearm for this section of the CCC?" question.
So, even a pop bottle and some electrical tape are prohibited, if used in this context. Good luck getting convicted of having those though.
Age verifier Northern Alberta
Democracy is two wolves and a sheep discussing what's for dinner.
Freedom is the wolves limping away while the sheep reloads.
Never confuse freedom with democracy.