Yea man, i just got to find some inserts to go with it!
There are inserts up for grabs every so often, I'm keen to get these parts moved on so if you want them I need to know.
The lucky 5.1 might also be up your street as it is a complete replacement for the top of the ion, new body, bolt, eyes etc.
True bolt out back design, no need to strip the marker down to get to the bolt. You need to run it close to 200psi and around the stock dwell setting but efficiency wise it's a great improvement.
It also lets you use cocker threaded barrel kits.