First of all read the owners manual!!!
doh...
Second heed the warnings...
Trust me if you don't it hurts like ^&*( and it's remarkably easy to get your fingers in there... ouch.
Next make your own ammo... it helps working somewhere you can make anything you can imagine (and CAD model up...)
Learn rapidly that at 400fps the ammo will go through a LOT of stuff. And that without a heavy nose, spin ammo, spins... and goes in all directions. Note to self, make ammo with hollow nose to fill with lead....
Now when taken apart (obviously after reading the owners manual
) it looks like I may be able to fit an RT valve into the gun... and with a little remote hose and regulation actually be able to use it to shoot paintballs. Any comments Tom? 
It's actually very difficult. This thing is so shiney that I just get glare and reflection off of it with any flash, and in the current indoor/winter night light I can't get any great pictures without a flash... But I took some anyway so you can see it and when I get chance to put it in natural light I will take some more.
I had it in my z-grip but that's a bit battered no...