Complete AEP gearbox from Cyma.
This model is designed for the G18C however the shell and all internal components are also compatible with virtually all TM and Cyma electric pistols.
Cyma AEP G18C Gearbox
Compatible with the TM and Cyma G18C AEP.
The cylinder head and cutoff cams are specific to the G18C however most of the rest is compatible with all AEPs.