Details
This STEEL Spring Guide replace the original Stock Spring Guide of Airsoft AEG
To build a tight & durable gearbox
Especially important for upgraded AEG to install this
Suitable for Airsoft Model of Tokyo Marui or compatible gearbox version 7
Recommended to use inline with Upgrade Spring
As always, upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed