G-Series Steel Recoil Spring Upgrade features: Steel material with CNC machined Include Enhance Recoil Spring Enhances the reaction force to speed up the blowback cycle For G-Series G17, G18c, G22 & G34. **Important Notice** Increasing in FPS can be achieved; however, it may require other parts to collaborate and advanced skill is needed. improper installation / fitting can shorten the life of the product. *PS: Please note: installing parts / assemble /fitting airsoft gun will need intermediate knowledge; for expert or gel ball gunsmith. Please refer to your gel ball gunsmith for proper installation / fitting. Fitting may be needed as the condition of each gel ball gun might be different. Regular maintenance is needed for all gel ball guns in order to keep it in good working condition and reduce wear out issue on parts. The actual performance is based on the overall setting on your airsoft gun. Please consult your gel ball gunsmith for advising. Strong Screw glue is needed for installation. Use a drop of screw glue when installing the screw and wait for it to dry out overnight. Damage could be caused to the screw thread if screw glue was not used.
