Latest quick review from Airsoftnmore is about the KWA Kz.61 Scorpion GBB which they have in stock... "Another awesome and unique SMG by KWA, not you can get your favorite Czech sub machine gun in a gas blowback package! Comes with a standard capacity mag but there are extended mags available at our store right now. Check out the Scorpion on our website or come on instore to check it out!"