I have not done this before, so it will be a learning experience for me. I intend to "mock-up" the rifle with 6" barrel on a Ruger oem wood stock. I will modify the front of the stock so the barrel protrudes past the end of the stock. When I say "mock-up" I mean loosely fit together but not assembled, with no bolt or trigger group attached. I will take a photo with a tape measure, showing the overall length (it should be approx 24"). I will e-mail this photo to the CFC/CFO and ask to register this configuration as a restricted length rifle. I expect that they will tell me to take the firearm to a local verifier, see below (from the RCMP website):
"A restricted firearm being registered for the first time in Canada – for example, a new import – must be verified by an approved verifier. Restricted firearms that have previously been registered in Canada are already deemed to be verified. They do not need to be verified again unless the Registrar requests another verification to confirm their description or classification. Call the CFP for help to have a firearm verified."
I actually foresee a problem with this approach. I don't think this sentence applies since I am simply installing a factory built barrel:
"...a firearm that is designed or adapted to be fired when reduced to a length of less than 660 mm by folding, telescoping or otherwise..."
I expect they will tell me that this 24" +/- rifle is NOT restricted. I know this goes against the common belief on CGN (that any .22 that has an OAL below 26" is restricted), and I may be wrong, but if this occurs I may have no choice than to register it as a pistol with the folding stock installed.
Whatever the outcome, it should be interesting and I will post the results in this thread.