V3 Engine, will come with stock parts ( Blue Nozzle). ONLY the engine, AK externals available for extra cost. FCU is revision 16. Includes SPEED brand trigger. Can include Lancer Tactical AK externals (last picture) for an extra $80. Comes with stock and buffer tube, not pictured. Engine o-rings are in great condition and everything is functional; however, one or both of the solenoids are heavily leaking. The gun still works and shoots but you need to replace them, the air leak is severe. You are may be able to fix it if you open the solenoid up, but replacements would be ideal. Shipping not included!