Airsoft Evolution Hammer Spring For VFC AR / M4 GBBR Series ( 80% / 100% / 130% ) Type:80% #html-body [data-pb-style=EJ1NDQU]{max-width:100%

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Compatible Inner Barrel Length: Approximately 330mm

- Full metal construction

Airsoft Evolution Hammer Spring For VFC AR / M4 GBBR Series ( 80% / 100% / 130% ) Type:80% #html-body [data-pb-style=EJ1NDQU]{max-width:100%Fine tune your gas blowback rifle's performance and trigger response with the Airsoft Evolution Hammer Spring. Precision coiled from high strength steel, this upgrade part is designed to replace the factory hammer spring in VFC AR and M4 GBBR platforms. Whether you are looking to improve gas efficiency in warm weather, replace a worn out factory spring, or fix "light strike" issues when using high pressure gas, Airsoft Evolution offers three distinct