OK i just got a G&G combat machine from a friend for 10$.. it is in great working condition and crono in at 280 baghaaa!! its 2yrs old and he has never cleaned damn thing. I am going to start taking it apart and upgrading almost everything internal.. I want to make this an outdoor gun with extreme accuracy. and a high fps say 400 to 450... what I'm looking for is suggestions and parts to use.. ?? going to buy the parts myself and do all the work myself.. this will be my first time doing all of the work..