Main spring M150
A steel spring with unequal pitch designed for power tuning. Provides a muzzle velocity between 500 - 520 FPS (depending on the internal gearbox parts used). The fronts of the spring have been ground, which translates into better work.
$9.14
Main spring M150—
$9.14
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
A steel spring with unequal pitch designed for power tuning. Provides a muzzle velocity between 500 - 520 FPS (depending on the internal gearbox parts used). The fronts of the spring have been ground, which translates into better work.
