Quick presentation by Taiwan Gun on the S&T UST9 G3 available at their online store. The UST9 is a realistic replica of a popular German submachine gun. It is made of durable polymer and powered by an advanced G3 gearbox that allows for a rate of fire of 24 BBs per second. It is also equipped with a quick spring change system and a modern MOSFET. These features make the UST9 pistol an excellent choice for airsoft players who want a reliable and accurate replica with a modern look.