Steel Power-Up Spring for PTW Airsoft AEG Rifles (Model: M130)

Part: SpringApplication: Ver.2, Ver.3 and Ver.7 AEG GearboxesCompatibility: Systema PTW Series and Other Compatible Airsoft AEG RiflesMaterial: Steel Features: Ultra durable Japanese steel constructionDesigned with strong elasticity and calculated spiral distance to ensure consistent powerDesigned to last thousands of rounds without any compression or deformationComes in multiple strengths