Modify S170+ Spring


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XTB Modify S170+

    • It is finely manufactured from A class piano wire.
    • Very durable and strong. 
    • Irregular pitch coiling for enhanced performance.
    • Very Consistent FPS
    • Easy to install.
    • Every spring has gone through vigorous and Sophisticated quality tests from the moment a new design leaves the software drawing through to final mass production.
The XTB Modify S170+ coil spring with irregular-pitch is designed for enhanced performance. Precision manufactured of the high-grade piano wire with high durability and strength, the XTB Modify S170+ is easy to install.