Steyr Pro X fill port plug

I simply used the fill probe, leaving it in place, but putting a cap on the quick connector coupling male end.
Just did same, tried cheap amazon fill probe
IMG_5661.jpeg
and did not work for my Rifle, returned and added quality fill probe to a existing order from Joe B for 24 bucks (looks like the same one on Donny's site) and male foster caps, fill probe caps and female foster caps from Air Tanks Plus.
 
  • Like
Reactions: jakeb