Im selling my upgraded G&G Combat Machine CM16. Internally it features 13:1 gears, steel rack piston, bearings on the spring guide, 8mm bearings in the gears, o-ring air nozzle, sorbo pad, high torque neo magnet motor, VFC mosfet with deans plug, and a Madbull TBB. Other work done includes shimming and AOE correction.Gun chonos at 330fps. Comes with Angel Customs firestorm drum mag, 120 lumen flashlight, vert grip, and Lancer Tactical Full Auto tracer unit.