Selling my Polarstar Jack mp5        Built on the cyma model Comes with everyhting shown  Has a tight bore barrel fitted ,   Comes with 2 spare cyma hop units  x2  FCU batteries ,  hk trade  lower receiver  ,  spare front grip      ,  has new O rings fitted   Played 2 games since they are changed ,   Old ones still in great condition  ,   Comes with the #nozzle  for M4 use ,   And a G&g v2 gearbox  if you wanna put it in an M4       X4 metal  mid cap mags   ,   Has Reg line and bottle ,   Bottle is expired but I have no issue filling it at my local field ,   Looking for £500 Birmingham area ,   Any questions   Don’t hesitate to ask