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![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](https://airsoftpro.cz/images/stories/virtuemart/product/aimtop-mech.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](https://airsoftpro.cz/images/stories/virtuemart/product/atmech-detail1-front.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](https://airsoftpro.cz/images/stories/virtuemart/product/atmech-detail3.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](https://airsoftpro.cz/images/stories/virtuemart/product/atmech-detail4.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](https://airsoftpro.cz/images/stories/virtuemart/product/atmech-detail2.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](/images/stories/virtuemart/product/aimtop-mech.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop] ![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](/images/stories/virtuemart/product/atmech-detail1-front.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop] ![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](/images/stories/virtuemart/product/atmech-detail3.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop] ![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](/images/stories/virtuemart/product/atmech-detail4.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop] ![Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop]](/images/stories/virtuemart/product/atmech-detail2.jpg)
Complete gearbox V2 for M4/16 with M120 - back wiring [AimTop] 
Description
Complet torque-up reinforced gearbox from AimTop. Easy upgrade. Just swap old gearbox with ths new one. Gearbox is designed for M4/M16 AEGs with the long barrels and wiring to the back.
Set include:
| Reinforced gearbox 2 |
| High Torque-up gear set |
| Low resistant wiring |
| 8mm ball bearings |
| Spring M120 |
| Metal spring guide with the bearing |
| Light piston wih full metal teeth |
| Back pressure pison head with bearng |
| Stainless cylinder head with double sealing |
| Sealing nozzle |
AIM TOP International
was founded in 1993 in Taiwan as an leading manufacture for Airsoft and paintball components. AIM Top is known for their AEG platform as their most known products are their clone AEG’s. They also sell upgrade parts for the AEG and produce consumables like Green gas and BB’s.