Hi, All new bags seem to have the push in "voss" connectors so you will have to cut the brass olive off and push the pipe into the new connector. Make sure you cut it clean and square. If you have to remove it in future you just push the collar in and pull the pipe out. I think you have to remove the white protective plastic piece in your photo - just check.
Can't help on ACE as I don't have it.
Regards,
Griff