Taurus GX4 T.O.R.O. Graphene 9mm (No Holster)Description The Taurus GX4 took the market by storm when it launched, bringing best in class capacity, reliability, and features to the micro compact pistol market. Now, the GX4 brings another innovation to the firearms industry as the first self defense handgun to incorporate graphene technology. Graphene is a unique substance used in materials from automotive to outer space. The GX4 Graphene uses this unique technology to improve durability of both