Unfortunately I never had an AUG nor ever worked on one, but I would imagine that it looks not far off of where it needs to be?
It requires some room in front of the gel feed tube to allow the nozzle to push the gel through and seal against the barrel end of the t-piece.
Are you able to assemble it with the gearbox and check if the nozzle reaches the end of the t-piece or falls short?
**** Just watched a @LowGuido video and it appears that the nozzle does only reach just past the feed tube, so looks like your t-piece/barrel definitely needs resetting