The SU16C would be restricted, as the barrel length is only 16" also the OAL when folded(and can still fire) is under 26"(25.5" according to website) so that would also make it restricted.
Also the barrel is threaded, which is another reason it would likely not be exported. That's based on American export policy.
The charlie stock itself, would be OK on a SU16F. But no charlie stocks seem to have made it into Canada.
Lots of sponsors stock the SU16F, but they might be out of stock. I seen some in the Equipment Exchange not long ago.




























