CNC machining, enhanced gear to be more durable and bearing stronger spring
New axis design, improve gear concentricity
integration of axis & gear instead of cooper shaft guide, more durable
Lower electricity consumption & lower noise
Specifications: Drive Ratio: 9/12/13/16/18/32/:1, 100:200/300 Suitable Spring: M110-M150 Recommend Battery Voltage: 11.1V or Above Replace Marui's Original Gears with this upgrade High-Speed Gear High-Speed Type would increase the rate of fire, best use with higher voltage battery, make them suitable for high torque spring Suitable for Airsoft AEG models with Version 2 & 3 Gearbox.
Package Content: 1 x Gear-S 1 x Gear-B 1 x Gear-SP