Which classification of firearms is NOT recognized in Canada?

In Canada, the classification of firearms is strictly defined, and the terms used include prohibited, restricted, and non-restricted categories. The classification of "recreational" firearms does not exist as an official category within Canadian firearm law. Instead, firearms used for recreational purposes would fall under one of the established classifications based on their specific characteristics and uses.

Prohibited firearms are those that are completely banned from ownership without special permission, while restricted firearms require a special license to own and are subject to strict regulations regarding their use and storage. Non-restricted firearms are those that do not fit into either of these more controlled categories and are typically considered more accessible for ownership and use. Hence, since "recreational" is not a recognized classification in Canada, the correct answer identifies it as not part of the official categories.