Modify FTK Gear Kit for G3-A3/A4/SG1 S130

The Modify FTK S130 gear kit is designed for the gearbox of G3-A3/A4/SG1 airsoft replicas, as an upgrade or replacement part for the internal mechanism.

Features

• Modify FTK kit, model S130
• For G3-A3/A4/SG1 replicas