A closer look at the FN 57 Five-seveN Gas Blowback Pistol. A full review of this awesome Marushin made Japanese gun, that uses standard CO2 cartridges.br .brProduct Link: coming soon! Enjoy the video? Follow the link to subscribe: Evike.com Website: .brTokyo Marui FN Five-seveN gas blowback pistol. This is an awesome replica with unbelievable performance. Please be sure to watch this pistol as it goes thru .