ok hopper any thing that keeps up (halo b, egg2 , qloader)
n2 tanks (crossfire, center flag, PE, these are all good hpa tanks for a good price)
get a hp tank LP tanks will have a slower recharge rate
and u will deff need a new bolt (amp tigarshark) can be found at
www.apmproducts.com
another thing join the dragun owners group
http://s3.invisionfree.com/DragunOwnersGroup/ 