Until recently, the punishment for possessing prohibited or restricted firearms when the firearm is loaded or kept with readily accessible ammunition was three years minimum for a first offence and five years minimum for a second or subsequent offence. This was in the case that the Crown made an election by indictment. A summary election would have simply lead to a maximum of one year imprisonment. In a recent case, the Supreme Court of Canada struck down these minimums. However, both accused were sentenced to seven years and 40 months, respectively.
In a firearms charge, it is important to have your lawyer negotiate with the Crown and present such as evidence as necessary for the charge to fall within the maximum of one year imprisonment.
Firearms and weapons is a complicated area of the law, with multiple Acts and regulations involved. For certainty, you should contact a lawyer
(i) has a barrel equal to or less than 105 mm in length, or
(ii) is designed or adapted to discharge a 25 or 32 calibre cartridge,
(a) a handgun that
but does not include any such handgun that is prescribed, where the handgun is for use in international sporting competitions governed by the rules of the International Shooting Union,
(b) a firearm that is adapted from a rifle or shotgun, whether by sawing, cutting or any other alteration, and that, as so adapted,
(i) is less than 660 mm in length, or
(ii) is 660 mm or greater in length and has a barrel less than 457 mm in length,
(c) an automatic firearm, whether or not it has been altered to discharge only one projectile with one pressure of the trigger, or
(d) any firearm that is prescribed to be a prohibited firearm;
(a) a knife that has a blade that opens automatically by gravity or centrifugal force or by hand pressure applied to a button, spring or other device in or attached to the handle of the knife, or
(b) any weapon, other than a firearm, that is prescribed to be a prohibited weapon