@iyu Yeah, they are, for hunting with a gun you need the a hunter permit for firearm hunting (which you cant get below the age of 20, which is more of a concern, since he really doesnt look that old xD), as well as a "normal" weapons permit (like, weapons training under the police, questioning of you and your social circle, investigation in your background, you need to buy a weapons locker, ect), after all that you can buy a shotgun from a licensed dealer to register it with the police. For a rifle you need to have a shotgun for about a decade with a good record before they let you test for "upgrading"
@MrCobalox Well, scopes on hunting shotguns aren't uncommon at all? And dont underestimate the range of shotguns, computer-games are nonsense in that regard, even normal shotguns still hit well over 20 meters and more, but his should be a rifled hunting-barrel, which can be accurate and deadly way over 150 meters with slugs... so a scope is nice to have.