Matrix M240B externals. It has an EMPTY GEARBOX which would be perfect for a HPA drop in kit. The stock has a hole drilled out for the airline. Barrel and hop up are 100% stock. Bipod tabs are still in good shape but the locking latch for the bipod is gone. Only functional part it is missing is the trigger/grip. There is NO mag included with this kit. Asking price is $200+ shipping NO TRADES, NO HOLDING I will not be able to ship until around Friday so I am just testing the water to see who is intererested *this picture was taken before the grip was lost and when it had an HPA engine in it