The TAR-21 (or simply Tavor) is an Israeli bullpup assault rifle chambered for 5.56x45mm NATO ammunition with a selective fire system, selecting between semi-automatic mode, burst mode, and full automatic fire mode. The name 'TAR-21' stands for 'Tavor Assault Rifle - 21st Century'. It is the standard issued weapon of the Givati Brigade (since August 2006) and Golani Brigade (since August 2008), with the Nahal Brigade receiving it by 2010. The MTAR-21 (Micro Tavor) was recently selected as the future assault rifle of the Israeli Defense Forces, and within the next few years it will become the standard Israeli infantry weapon. It is named after Mount Tabor.