ZCI CNC 13:1 high speed gearset
High-performance airsoft electric gun AEG upgrade parts series.
Replace Marui's original gears with this upgrade high speed gear.
Suitable for airsoft electric gun with version 2 & 3 gearbox.
High speed type would increase rate of fire, best use with higher voltage battery, make them suitable for high torque spring.
Drive ratio: 13:1.
Suitable spring up to m130.
Recommend battery voltage up to 11.1v. high speed gearing for increased rate of fire