Bought all the parts from a flea market. Then assembled few weeks ago. ****************************************** If want use in field, may need extra work or parts!!! ****************************************** Changed new hopup bucking. New steel outer barrel New body. Lost barrel lock pin(not effect any function, barrel locked tight without pin) Hopup chamber scratched heavy,(not effect function) Gun did not tried in any range test. Only did chorono test, .23 370~400 fps. Burst, semi, full auto functions worked fine. OK for shipping in U.S. No trade!!! PayPal only, pay first. Shipping fee include.