Main Spring M140
A steel spring with unequal pitch designed for power tuning. Provides muzzle velocity between 450 - 480 FPS (depending on the internal parts of the gearbox used). The fronts of the spring have been ground, which translates into better work.
$1.72
Original: $5.72
-70%Main Spring M140—
$5.72
$1.72Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
A steel spring with unequal pitch designed for power tuning. Provides muzzle velocity between 450 - 480 FPS (depending on the internal parts of the gearbox used). The fronts of the spring have been ground, which translates into better work.
