– FS2004 MiG-21 bis flight2000it 17 years ago FS2004 MiG-21 bis. A Mikoyan Gurevich 21bis jet fighter with various models and textures included. By Pierre Marchadier (Gmax Academy). 20 Mb – FS2004 Yugoslav MiG-21 BIS– FS2004 Croatian MiG-21 BIS– FS2004 MiG-21 bis