- Metal Bravo style 10'' M-LOK rail system with 2 rail attachments - Metal outer barrel, metal buffer tube, metal iron sights - Quick Spring Change Gearbox allows spring change without opening the gun - Metal finishing polymer receiver (Can't tell it is plastic, comparable to Tokyo Marui plastic receiver) - Real steel marking - Metal 300rds HI capacity magazine - CTR stock - 7.4V or 11.V lipo recommended - OEM: Double Bell