FN Herstal is a subsidiary of the Herstal Group, which also owns the U.S. Repeating Arms Company (Winchester) and Browning Arms Company.
Moreover FN Herstal is the parent company of two other companies located in the United States: FN Manufacturing and FNH USA. FN Manufacturing, which is located in Columbia (SC), is responsible for producing designs FN Herstal in the States of America, including the manufacture of firearms as the M249 and M240 machine guns and assault rifle M16, among others.
FNH USA, located in McLean (Virginia), is the company responsible for sales and marketing of FN Herstal on US soil.
This is the FNS-9 from Cybergun that we had the opportunity of see in one of the most important gun show of Taiwan, here you have a couple of images: