FN F2000

The F2000 is an Belgian bullpup 5.56×45mm NATO assault rifle. 
The F2000 has been in production since 2001. It is used in many countries including Belgium, Libya, Peru, Saudi Arabia, Pakistan and more. The F2000 is a replacement of the FN FNC. 
The FS2000 is a civilian version of the gun. FS2000 is only semi-automatic and has a long barrel. It began production in 2006.