[ooglieboogliebob]

you could get an HPA tank .. and maybe a regulator ... and probably turn it low pressure so it's more efficient on gas ... you could also probably replace the VA and valve for better flow also.

but before that .. i'd get a new feedneck, barrel, and then the electro hopper. For a hopper I would probably try an eggy with y-board, then upgrade it to a z-board.. then probably get a reloader b. And for a barrel i would probably get anything smart parts, J&J, or CP. and for a feedneck ... i'd just get anything good that's clamping