I've owned this gun for less than a year and only used it five times. After use I always take the battery out and put it back in the box. Has never seen rain or mud and is completely clean. The gun is full metal with a mosfet and ETU(11.1 LiPo ready). Gun comes with G&G upgraded G2 gearbox from factory. The G2 gear box has plenty of features, such as magazine cut off detection when you run out of BB's in the mag. Low battery indicator which beeps at you letting you know that your battery is low. And 3 - 5 round burst settings which is programmable through the trigger. This gun comes with the box, manual, cleaning rod. stick speed loader, 11.1 LiPo, and four magazines of G&G G2 mid caps, which comes with their own individual boxes. Gun is in great condition.