i would have to say new bolt right off the bat
hopper something that will keep up (halo b egg 2 q loader etc)
if u have to run co2 make sure its an anti syphoned tank!!! but do try and get hpa its way better
new barrel/ barrel kit (pipe, freak, cp, powerlyte are all good barrles)
then when u have some money to spare get a new inline reg /asa and dropforward
other then that u can just get lil nick nacks like zenitram trigger, no rise clamp feed neck, mod ur trigger switch, new guage cuz stock ones not the best anything to make ur gun look better
