There are two general types of air guns (also known as BB guns, pellet guns, spring guns or air soft guns):
air (pneumatic system), and
spring (spring-air)
A third type, gas (CO2/nitrogen), even though they are not, strictly speaking, “air guns,” are subject to the same rules set out below. For purposes of the Firearms Act and the Criminal Code, air guns can be further divided into four categories:
1. Air guns that are firearms for purposes of both the Firearms Act and the Criminal Code
These are air guns with both a high muzzle velocity (greater than 152.4 metres or 500 feet per second) and a high muzzle energy (greater than 5.7 joules or 4.2 foot-pounds). The “muzzle velocity” is the speed of a projectile at the instant it leaves the muzzle of a gun, normally expressed in metres per second or feet per second. The “muzzle energy” is the energy of a projectile at the instant it leaves the muzzle of a gun, expressed in joules or foot-pounds. Air guns need to meet both standards to be classified as firearms for purposes of the Firearms Act.
These high-powered air guns are subject to the same licence and registration requirements as a conventional firearm. Owners and users are also required to store, transport, display and handle them safely in accordance with the regulations supporting the Firearms Act.
2. Air guns that meet the Criminal Code definition of a firearm, but are deemed not to be firearms for certain purposes of the Firearms Act and Criminal Code
(see link below for details)
3. Air guns that are replica firearms
(see link below for details)
4. Air guns that are neither firearms nor replicas
(see link below for details)