GB-04-11 Tune-Up Spring M90SP
Product Code:：GB-04-11
．Material : Steel
．Compatibility : TM and other compatible gearboxes
．High quality construction for durability and consistency.
．Irregular pitch for enhanced durabilty & optimal performance.
．Easy installation for FPS increase.
．M120 and above stronger springs may require other gearbox internal part upgrades.
．Compatibility : TM and other compatible gearboxes
．High quality construction for durability and consistency.
．Irregular pitch for enhanced durabilty & optimal performance.
．Easy installation for FPS increase.
．M120 and above stronger springs may require other gearbox internal part upgrades.