Alexandr does a video showing the features of the SA-C04 CQB-R AEG from Specna Arms that Russian airsoft players can order from Airsoft-RUS... "The body is made of nylon, the forend is made of aluminum alloy. The receiver consists of two halves: an upper and a lower receiver, which are connected by two pins. The barrel and forend are attached to the upper receiver, and the stock guide and pistol grip to the lower receiver. All connections are made tightly and securely, there are no backlashes at all.