With Gorilla FCU app you can manage your HPA rifle in a few moments, with maximum ease and completeness! Stop with the usual infinite settings where you have to set the parameters by trigger or with a mini joystick: THE PREHISTORY IS FINISHED! Among the many features, the possibility of: - Export all the settings in a single file, so you can choose in fractions of a second if you want to play in DMR, CQB and many other modes according to your needs - Choose between Closed Bolt and Open Bolt