Set of 18:1 Steel Gears 
A set of gears by Big Dragon made from steel using precise CNC machines. Ideal for tuning of airsoft replicas, intended for installation in replicas with gearbox V2 and V3.  They are ideally-suited for springs not powerful than 130 m/s as well as for ROF tuning.
The use of gears with appropriate ratio allows to further improve operational reliability of the system and reduce energy consumption.