Originally Posted by surebet
Seriously, ditch the crossman and get something else. Period.
You have no idea how expensive what you're proposing gets, and at the end of the day it's still a POS plastic body holding it all in.
... never mind compatibility issues...
Quoted for truth.
Although i can understand the desire to build a scratch gun (or mostly scratch) The amount of money and work involved would far more then just buying a new gun, and at the end of the day, you will end up with a shitty plastic gun that might not even shoot.
Sorry to rain on your parade, but just buy a new gun.