Gear box for the M16 and MP5 SRC Airsoft Guns. If your SRC Airsoft gun starts to run out of steam or you need a bit more power, then this SRC V3 gearbox is for you.
Comes fully assembled with an approximately 310 fps (gun depending) – you will need to re-use your existing motor.
Front wired this gearbox is the Gen II version gearbox may also fit other brands.
Drop In Complete Gearbox For M16 and MP5 Variants.
Everything There Except For A Motor