G17 Gen4 120% Recoil Spring

G17 Gen4 120% Recoil Spring

Highlighted features
Made from High Strength Spring Steel
Hard Coating Prevents Corrosion
Improve cycling efficiency
For TM G17 Gen4

**Important Notice**

It may has a condition that your pistol cannot feed the BB bullet due to lightweight gas supply. You just simple remove a spacer to solve the issue. Alternatively, you may consult your gunsmith for advancing fitting to solve this issue as well.

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 airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation / fitting. Fitting may be needed as the condition of each airsoft gun might be different. Regular maintenance is needed for all airsoft 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 airsoft 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.