Gearbox :Full metal gearbox case with Lancer Tactical laser engraveSteel gearsDelayer8mm steel bushings14 steel teeth pistonAnodized cylinderTorque motor long typeQuick spring changeQuick Detach spring guideM90 SpringLow resistance wiringMetal triggerReinforced electric switchInternal parts :Precision brass crafted and polished tightbore barrel 297,3x6,03mm en laiton poliRotary hop-up unit50 hop-up rubberExternal parts :Nylon fiber reinforced frame and bodyFull metal barrelSteel front sightRemovable upper carrying handle exposes 20 mm standard rail for optic attachments.Full metal attached slingNylon fiber crane stockNylon fiber stock pipeNylon fiber motor gripSteel fake boltHi-speed style steel charging handleSteel magazine catchMetal bolt catchFull metal Hi-cap 300 rounds magazine (only need 1 full wind up))Semi and full auto9,6V 1600mAh battery (included)Automatic battery charger (a red light display determines the battery is charging and a green light indicates the battery is completely charged)