Yas and Mister Moro are back with the latest Gas Blowback airsoft gun to hit Japan, the Maruyama SCW-9 PRO G GBB in this Hyperdouraku review... "A gas blowback from a Taiwanese toy gun manufacturer called Maruyama ! The product name is SCW-9 PRO-G, but it is modeled after B&T's APC-9K, which was also adopted by the US Army. After all, it's been a long time since I've seen this small submachine gun class gas blower.