Upgrade your Tokyo Marui NGRS gearbox with the RetroArms M140 Spring, crafted from high-grade SiCr (Silicon-Chrome) alloy and engineered with progressive winding for smoother compression and reduced mechanical stress. Designed for builds requiring higher muzzle velocity and consistent spring tension.
Features:
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Made from durable SiCr (Silicon-Chrome) spring steel
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Progressive winding reduces wear and enhances durability
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Designed specifically for NGRS (Next Gen Recoil Shock) gearboxes
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Provides stable and consistent power output
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Ideal for DMR-style or high-power AEG builds
Specifications:
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Spring Rating: M140
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Material: SiCr Spring Steel
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Type: Progressive Winding
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Compatibility: Tokyo Marui NGRS gearboxes
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Country of Origin: Czech Republic
What’s Included:
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1x RetroArms NGRS Spring SiCr – M140
Important Notes:
Professional installation is recommended. Always match the spring with suitable internal components to avoid excess wear.
Disclaimer:
⚠️ This product is an upgrade part intended for toys only. Not for real firearms.
