The JG MK36c Complete Gearbox is a replacement gearbox for the MK36 series of airsoft assault rifles. It features JG standard internal parts. This gearbox will fit in most major brands of MK36 AEG such as TM, JG, and Echo 1. However, this gearbox may require some work and modification.
This gearbox may require some work.
Airsoft GI recommends professional installation for this product.