Greywolf: Yes, it can be done. To do so you need to enlarge the AIR chamber, that would require machineing tools and some inginiuity. Off the top of my head I can think of 4 ways of doing it, and doing it well.
As for the advantages.... You'll have a unique, completely useless automag. The higher the pressure an auotmag runs at, the faster it can recharge, and the more efficant the gun is. The relitively low pressure of 450psi that a mag runs at, was chosen becasue that's the highest pressure co2 can support readily. Higher pressures are ideal.
SniperWolf: None of the advantages you listed are true, the automag is a dynamic design, and requires higher pressures to preform well. AGD isn't trying to make a lower pressure automag. Though AGD has produced automags that run at slightly higher, and lower pressures. The Smartmag ran 25-50psi lower than automags. The Hypermag was the oppisite, running 25-50 psi higher. The smartmag is less efficant, the hypermag is more efficant.
You'd have to be Crazy to be sane in this world. - Nero
Omnipotence ain't all it's cracked up to be.......