The only gas blowback airsoft Tavor is the Umarex/KWA IWI Tavor SAR GBBR which gets reviewed by Gae Bong Soon. This is available in South Korea for those who live in the area and are looking for one. This is a good replication of the IWI Tavor SAR and has good recoil and this comes with a 36-BB round gas magazine.