Heavy duty 3mm steel gears
Precision CNC machined construction
Heat treated for improved strength and durability
Manufacturer: ZCI
Specifications:
Material: SteelGear Ratio: 13:1, 16:1, 18:1, 32:1Compatibility: Most Standard Tokyo Marui Spec Airsoft AEG Gearboxes (M4, AK, MP5, G36, P90, and Other Compatible Models)