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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
making it ideal for competitive speedsoft gameplay
Highly polished inner surface for reduced friction and smoother piston operation
Disclaimer:⚠️ This product is an upgrade part intended for toy use only
Compatible with ICS M4 AEG rifles with split gearbox
Spring Rating: M140
RetroArms NGRS Spring SiCr with Progressive Winding – M140 SR25 making it ideal for competitiveUpgrade 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: Made from durable SiCr (Silicon Chrome) spring steel Progressive winding reduces wear and enhances durability Designed specifically for NGRS
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