||This is my sons gun and he bought it based on bang for buck. I would say that it's an average beginers gun but has some potential. The upper and lower reciever is actually pretty good and the upper goes in similar to my G&G M4; only the front pin needs to be removed to swap barrels. The gearbox is pretty descent but only has 6mm bushings. That is ok for me as I am a believer in solid metal bushings not bearings. The FPS is closer to 340-350 out of the box on .20's but with a madbull 6.01 it rams up to 360-365. The outer barrel is absolutely horid. The buffer tube is the same material but doesnt seem to matter to much. We were lucky and at a local Airsoft store found a M4 that was complety gutted except it still had the metal outer barrel and buffer tube. After those were put on it is close to on par with my gun but not quite.
FPS better than expected
Good gearbox for the money
Good ROF on 8.4 incluede Battery (10rps)
Magazine is tight in lower reciever unlike G&G's
Too light with plastic outer and buffer
Buffer and Outer are utter junk
Accuracy is not that great without tightbore
Overall this is a good gun minus the outer barrel. Great gift for a younger player and if you get a metal outer its a pretty good gun overall. We have shot over 5k through it and it has had no problems.