What is the maximum barrel length for a rifle to be classified as a short-barrel firearm?

A rifle is classified as a short-barrel firearm when its barrel length is less than 16 inches. This classification is due to regulations set by the National Firearms Act (NFA) in the United States, which distinguishes between firearms based on barrel length among other features. The definition serves to identify firearms that are more easily concealable and potentially more dangerous in criminal contexts. Therefore, the maximum barrel length for a rifle before it qualifies as a short-barrel firearm is indeed 16 inches.

Understanding this distinction is important for law enforcement and firearm enthusiasts alike, as it governs legal compliance with federal regulations regarding ownership, transfer, and possession of such firearms.