Army Force 8mm Complete QD Transform AK Gearbox Set (Ver.3 Rear). "QD Transform" gearbox is a new generation gearbox with all the unique & great features of a STAR / ARES (QR gearbox) and Deepfire gearbox (Micro switch). This gearbox has an unique shell, spring guide, selector plate, cut-off lever and trigger, all other parts are compatible with regular AEG Ver.3 8mm AK gearboxes. 6pcs metal bushings. Replaces all major brand AK standard gearbox. Version 3 gearbox with rear wire configuration. Easy power upgrade system. Quick release spring and spring guide for easy power adjustment / spring replacement. Micro switch operation for shorter & better electric range. Faster trigger response design. Featuring "spring release" function. Full metal reinforced chassis / gearbox with metal gear set. Transformer gearbox will work with most AEG AK Platforms (Modification may be required) Army Force Model No. - AF-IN0180 Weight - Approx 490g Original Packing Suitable for outdoor wargame activities. Note: Self-assembly is required, consult expertise if needed.