Handguns with a barrel equal to or less than 105mm in length, or designed to utilize .25 or .32 caliber ammunition, any firearm which is a rifle or a shotgun less than 660mm in length or with a barrel less than 457mm in length, any automatic firearm that has not been 'altered to discharge only one projectile with one pressure of the trigger' these firearms rules apply to everyone except police officers and other exempt categories. If you owned a registered firearm that became prohibited when the firearms act was initiated, you may still legally possess that firearm.