Steel Power-Up Spring for PTW Airsoft AEG Rifles (Model: M90)

Part: Spring
Application: Ver.2, Ver.3 and Ver.7 AEG Gearboxes
Compatibility: Systema PTW Series and Other Compatible Airsoft AEG Rifles
Material: Steel
Features:
Ultra durable Japanese steel construction
Designed with strong elasticity and calculated spiral distance to ensure consistent power
Designed to last thousands of rounds without any compression or deformation
Comes in multiple strengths