AEA Fill Probe To Foster QD Conversions?

[Airgun Al]

Im not a fan of fill probes as I seem to misplace them eventually.
Generally speaking, can a fill probe be eliminated and replaced with a Foster QD style filling?
Is it possible on some guns, but not others?
The AEA Challenger Pro and the FX DRS are 2 rifles that interest me, but a Foster style fitting would certainly be prefered.
Thoughts?

 

[cavedweller]

Im not a fan of fill probes as I seem to misplace them eventually.
Generally speaking, can a fill probe be eliminated and replaced with a Foster QD style filling?
Is it possible on some guns, but not others?
The AEA Challenger Pro and the FX DRS are 2 rifles that interest me, but a Foster style fitting would certainly be prefered.
Thoughts?

you can also leave the fill probe in and and cap the end...