The 5.56 mm Kbk wz. 2005 Jantar is a Polish experimental assault rifle is configured in a bullpup layout, and was designed by the state-owned Wojskowa Akademia Techniczna, based on the Kbs wz. 1996 Beryl rifle.
The "Jantar" is a prototype to test the advantages of the bullpup configuration, which proved to be a more accurate layout for burst-shooting of carbines ("karabinek"). The project was not intended for production, but to gain experience to be applied in the modernization program of the Polish Military.
