Selling my almost new MDR-X here. Bought about six months ago, made 1 skirm with it, and it's been hanging on the wall ever since.
As luck would have it, there was a misfeed on the first day of the game with blocked gears and a burned out motor (including a sprint into the safe zone). Since then, the internals have been replaced with the updated parts (ordered directly from Silberback) and a Tienly GT-30k motor has been installed. Since then it has been running smoothly.
Sold with a 1400mah 11.1V battery, 4 magazines, 80nm spring (I can't find the 60nm spring at the moment), the tool to remove the pins, QD slingpoint at the front.