For a longer answer than the accurate "no", see the definitions section of Part 3 of the Criminal Code, under section 84:
"prohibited device means" (c) a device or contrivance designed or intended to muffle or stop the sound or report of a firearm.
See also the offences created under section 91 (2) and 92 (2) regarding possession of a prohibited device, among other things.
Cheers,