With the electric blowback feature now fully mature on the unique ICS gearbox system, they company are now implementing this system to the older models. The 2015 ICS EBB System Revival gives these models an "upgrade", so to speak, to answer the players' request to have the blowback split gearbox system on the the existing and best selling ICS AEGs. Check the poster below to find out which initial models will be coming out with the gearbox upgrade.