Here is a great combination of internal and external parts. The base gun is a G&G Firehawk AEG. Modifications/upgrades as follows: *G&G 35000 Titan high performance motor *highspeed gearset *ball bearing spring guide *upgraded bearings *steel tooth piston *chrome steel cylinder *wired to deans *Extended 6.04 inner barrel *ARMS S.I.R. Replica rail system (MW2 rail) *ASG TAC QD Mock suppressor Has a fast rof and quick trigger response. Shoots about 360-370 fps with .20g bbs. Asking $250. Comes with lipo battery as well.