The Brazilian legislation that regulates the manufacture, import, export, trade, traffic and use of airguns divide them into two groups:
- airguns by spring action or pre-compressed air (PCP - Pre Charged Pneumatic) of up to 6mm calibre;
- airguns by spring action or pre-compressed air (PCP - Pre Charged Pneumatic) of calibre exceeding 6mm; or pre-compressed gases that is not breathable air, such as CO2 and others, in any calibre.
Airguns in the first group may be purchased by anyone over 18. Airguns in the second group can only be purchased by people registered in the army, transportation depends on authorization, and usage is allowed only in places approved by the army. Airguns of any kind may not be carried openly. There is no muzzle energy limit for any type or calibre.
[2][3]Scopes or any equipment with magnification needs to be registered by the army in the shooter's registry and accompany a traffic authorization, and are 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 milimeters, or equipment that mark the target (like laser sights), are 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".