All I can say is that this gun is AMAZING. So far I have only encountered 1 problem and that is a really loose buffer tube. I use .28 bbs and they deliver great range + accuracy with this gun. DO NOT USE .20!!! They just dont deliver the kind of range and accuracy and range as heavier bbs. I am probab;y going to buy a percison inner barrel to further increase accuracy.
The buffer tube sometimes becomes loose but its easy to tighten and if you dont want to tighten
Rating: [5 of 5 Stars!]