"Just bought this gun today, shooting 420fps average out of the box with .20 gram bbs, shoots really well and fast, accuracy is decent, not the best, it was kind of windy out so that may have had an affect on it, shooting at about 60-70 yards. You have to shoot almost a full clip for the hop up to finnaly start working which was wierd, I thought it was broken but I kept shooting it, then gave it a break, then it turned out to be fine. The battery it comes with is garbage, which is to be expected, so a 9.6v butterfly type battery is fine, but you gotta really work it into the stock becuase it is a tight fit, plus you have to be careful with the wiring, you won't be able to adjust the stock, unless you fiddle with it, I just leave the crane all the way in. And it says LIPO ready, it isn't, I went to my local airsoft store (they know their shit) they said it isn't lipo ready without some other upgrades which I forgot. It is really loud also, not exaggerating, not that it is a problem, but to some it might be. Pretty sturdy gun, execpt the grip and crane stock, but that shouldn't be a problem. I'm taking it to a battle this sunday, and will post how it went using this gun, stock. Gonna need an upgraded barrel."