The Australian thing seems strange
I thought they banned guns
How Australia Classifies Firearms
The National Firearms Agreement divides firearms into five licensing categories based on characteristics and relative risk. Each category carries different restrictions and licensing requirements.
Category A (Lowest Restriction) Rimfire rifles, single and double barrel shotguns. Air rifles fall under this category. These are the most accessible firearms for licensed civilians.
Category B (Moderate Restriction) Single shot and repeating centerfire rifles. Lever-action shotguns with a magazine capacity of five rounds and muzzleloading weapons built after 1901.
Category C (Restricted Access) Semi-automatic rimfire rifles with a magazine capacity no greater than 10 rounds, and semi-automatic or pump action shotguns with a magazine capacity no greater than 5 rounds. Only farm workers, clay target shooters, firearms collectors, firearms instructors, firearms safety officers, and primary producers can apply.
Category D (Prohibited for Most Civilians) Self-loading centerfire rifles. Ownership restricted to military, police, and professional vertebrate pest controllers. The Bushmaster AR-15 falls into this category.
Category H (Handguns) Handguns require special licensing. Applicants must complete a six-month probationary period and can only use handguns at approved gun clubs or under supervision.