air force oldbuild 2003

Hi you need someting like this.

Or this

Or from Aliexpress.

Check with a light plastic hammer, if you can open the valve, watch out for hard blast of high pressure air, juse ear protection and safety googles

170 bar is more then enough fill pressure.
If the bottle is empty you can push the valve open with youre hand.

Cheers wimone
 
OK. Here's what I have. I guess you screw the Air Tank into the larger opening?
It's a HEAVY STEEL part!

AirForce-adapter.jpg