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View larger AirsoftPro 9mm upgrade spring for sniper rifles M160 is a reinforced spring designed to increase the performance and effective range of manual airsoft sniper rifles. It is made from high-quality heat-treated spring steel and features ground ends for smooth operation. Thanks to the selected materials and manufacturing process, it maintains its properties over long-term use.

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The reinforced AirsoftPro spring is designed for manual sniper rifles using 9mm springs. With a properly sealed air system, the resulting performance reaches approximately the nominal value corresponding to its spring rating. The spring is manufactured from high-quality spring steel with heat treatment, helping maintain consistent performance even during long-term use. The black oxide finish protects the material against corrosion and wear. Before installation, it is recommended to verify compatibility with the piston being used, as the spring is primarily intended for reinforced upgrade pistons.
Designed for upgrading manual sniper rifles that require higher muzzle velocity and extended effective range.
Made from durable heat-treated material for long service life and stable performance.
Precisely machined ends contribute to smoother operation and proper positioning within the mechanism.
The surface treatment helps protect the spring against corrosion and normal wear.
The outer diameter of approximately 12.8 mm matches most reinforced pistons intended for higher-performance builds.
| Variants | M160 |
| Color | Black |