Well, since MCB couldn't handle me not knowing an appropriate price, here is a picture and full ad.
I am looking for these in trade: a CO2 quick changer, PMI rubber grips, a 10 round tube adapter/speed feed, and a velocity adjuster, all for a similar PMI.
Here is the picture this is a PMI that has been modified for to take a WGP ammo box. It has what is probably a copper tubing elbow setup that fits on the marker but isn't attached in any way. It has a bottomline constant air adapter. The 7oz tank is dated 9-88 but should be exempt from hydro testing. This marker is rough but does hold air.