What firearms are prohibited?
The Criminal Code defines the following firearms as prohibited:
* automatics, including those that have been converted so that they can only fire one projectile when the trigger is squeezed;
* handguns with a barrel length of 105 mm or less, and handguns that discharge .25 or .32 calibre ammunition, except for a few specific models used in International Shooting Union competitions;.
* rifles and shotguns that have been altered so that their barrel length is less than 457 mm (about 18 inches) or their overall length is less than 660 mm (about 26 inches); or
* any firearm prescribed as prohibited -- These can be found in the fact sheet listing restricted and prohibited firearms.
Who can have prohibited firearms?
You are allowed to possess certain prohibited firearms if you had one registered in your name when it became prohibited and you continuously hold a valid registration certificate for that type of prohibited firearm from December 1, 1998 onward. The Firearms Act refers to this as being “grandfathered”.
http://www.rcmp-grc.gc.ca/cfp-pcaf/f...rohibe-eng.htm