air guns in the first group may be purchased by anyone over 18. Air guns in the second group could only be purchased by people registered in the army, transportation depended on authorization, and usage was allowed only in places approved by the army. Air guns of any kind may not be carried openly. There was no muzzle energy limit for any type or calibre until 2010. Until 2010, scopes or any equipment with magnification needed to be registered by the army in the shooter's registry and accompany a traffic authorization, and were allowed to civilians only if under 6 times magnification and with the objective lens smaller than 36 millimeters. Scopes with magnification equal or above 6 times and/or over 35 millimeters, or equipment that mark the target (like laser sights), were restricted to civilians and allowed only for use by the army. The permitted equipment has to be registered in the civilian's document, this process is called "Apostilamento". The document for a shooter's registry is called "Certificado de Registro de Atirador". Since 2010, there isn't any restriction on caliber for air guns. It is now legal to own any kind of airgun, be It a springer, a PCP or any other kind of air gun, as long as the muzzle energy isn't bigger than 500 Joules. Also, the restriction for optic devices for air guns were removed and is now required only in some cases, for military-grade equipment. Since February 1, 2023, firearm ownership is now facing new restrictions, but there isn't any new restriction for air gun ownership – they can be used by anyone, and they can be owned by anyone over 18 years old. Since 2010, air guns can also be used anywhere that is safe and the owner/tenant gave his permission. For example, the owner or tenant can shoot his air gun at his backyard, as long as he isn't committing a crime (if he is shooting late at night, he may be committing a crime if he is generating much noise). It's still illegal to open carry an air gun, and even when someone carry his air gun in a concealed way of inside the case, he must prove his ownership of the air gun, likely with a copy of the receipt. All this information can be seen at the Brazilian's army website. Belgium Air guns can be freely bought and owned by