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10+ Years in Business

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FX Part #: 19850 - Spring 0,5x4x20

X Part #: 19850 – Spring 0.5 x 4 x 20

The FX Spring 0.5 x 4 x 20 (Part #19850) is a genuine FX Airguns component designed for precise performance and reliable tension in your air rifle’s internal systems. With a 0.5 mm wire diameter, 4 mm outer diameter, and 20 mm length, this spring delivers the ideal balance of flexibility and strength for smooth, consistent mechanical operation.

Commonly used in various trigger, valve, or regulator assemblies, this spring is manufactured to FX’s exacting specifications, ensuring a perfect fit and long-lasting durability.

Key Features:

  • Genuine FX Airguns replacement part (Part #19850)

  • Dimensions: 0.5 mm wire x 4 mm OD x 20 mm length

  • Provides consistent spring tension for smooth operation

  • Compatible with multiple FX airgun components (refer to schematics)

  • Ideal for repairs, maintenance, or performance tuning

  • Precision-engineered for reliability and longevity

Restore or fine-tune your FX airgun with this high-quality OEM spring—built for precision and trusted by airgun technicians worldwide.

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