That is true of restricted weapons here, but not all ar type weapons are restricted (those that are not are often explicitly advertised as "non restricted" so there's no confusion - it's all confusing as heck tho). The big thing here is that the magazine must be pinned to hold no more than 5 rounds in any semi automatic centerfire. Do indeed verify if your particular rig is legal. But no, ar type weapons are not in and of themselves illegal or even restricted any more than bolt guns in many cases up here (so long as they have no real magazine capacity, which to my mind nullifies the point of having an ar, thus my not owning one - that and my general lack of interest in owning much else besides bolt action rifles).