ICS announce that the upgraded versions of some of their older AEGs that are included in the 2015 ICS EBB Revival System which they first revealed in May 2015, are now available... "We would like to share with you more of the '2015 ICS EBB Revival system products' including M4A1, M4 RIS, M4A1 Tubular RAS L and S, and CXP-08. The EBB revival system keeps our most prominent feature, 'split gearbox', and upgrades many functions to enhance the pleasure of playing with ICS.

For the EBB system products, it not only includes the one piece upper receiver, receiver locking pins, and spring releasing function, but also has upgraded gears, such as reinforced MIM pinion and bevel gear, metal Hop-up set, or reinforced piston. Thus, if you are looking for M4 series guns, ICS EBB revival system product is the best choice."