That's the same as here. Formally, you could own guns, up to civilian version of AK (Saiga), but you can't use it for self-defence practically. Intruder have to be armed with, IDK, 120mm howitzer, in order your self-defence to be accounted as "adequate". Otherwise you will be charged with "exceeding limits of necessary self-defence" with significant jail time. It's more sane to use chainsaw as a weapon against intruderm then a gun. But in any case you will be dragged through the all hell of investigation and court process. Fortunately, intrusions and assaults here is rare now, so you have to be extremely unlucky to find yourself in situation when you need a gun for self-defence.