Most of this stock (there are 20K guns on site) is restricted for approved Governemental contracts. However, some of it will be converted to Semi-auto for the civilian mkt , which is only a tiny part of this Cie business.
In theorie, yes , a Czech citizen can own a Cat A full-auto gun . It will have to be stored in a "safe room" not a safe cabinet. It is subject to a "case by Case" approval by the police. In practice, it is very difficult and some police authorities, such as Prague's one, nearly always decline such application.