Section 2 CCC
“firearm”
“firearm” means a barrelled weapon from which any shot, bullet or other projectile can be discharged and that is capable of causing serious bodily injury or death to a person, and includes any frame or receiver of such a barrelled weapon and anything that can be adapted for use as a firearm;
Section 84 CCC
“prohibited firearm” means
(a) a handgun that
- (i) has a barrel equal to or less than 105 mm in length,
- (ii) is designed or adapted to discharge a 25 or 32 calibre cartridge
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;
Section 84 CCC
“restricted firearm”
“restricted firearm” means
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(a) a handgun that is not a prohibited firearm,
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(b) a firearm that
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(i) is not a prohibited firearm,
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(ii) has a barrel less than 470 mm in length, and
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(iii) is capable of discharging centre-fire ammunition in a semi-automatic manner,
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(c) 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, or
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(d) a firearm of any other kind that is prescribed to be a restricted firearm;
The Regulations prescribing prohibited and restricted firearms is available online from the Government of Canada, and are known as “Regulations Prescribing Certain Firearms and other Weapons, Components and Parts of Weapons, Accessories, Cartridge Magazines, Ammunition and Projectiles as Prohibited or Restricted”