M110 Spring (Japanese certified quenching material) - SHS

M110 Spring (Japanese certified quenching material) – SHS Spring M110 (Japanese certified quenching material) – SHS is The Spring M110 from SHS is made of high-quality spring wire with a blackened surface that protects against corrosion. Certified by the Japanese authority, it ensures high quality and durability. The spring has a progressive coil and is ideal for use in airsoft guns where stable and reliable performance is required. We recommend using a piston head with a bearing and a spring pin with a bearing for optimal performance. Before installation, it is recommended to measure the actual hardness of the spring for precise performance tuning. Features Type: M110, progressive coil Material: Spring wire with blackened surface, anti-corrosion Certification: Japanese certification Manufacturer: SHS (Super Shooter) Recommendation: Use a piston head with a bearing and a spring pin with a bearing for optimal performance. Approximate hardness: M110 - R120 Technical parameters Type: M110 Material: Spring wire with blackened surface Certification: Japanese certification Hardness: R120 (approximate)