Madbull M140 Spring (Non-Linear)

Madbull have brought out a range of colour-coded springs that perform just as well as it looks. The colour is actually hard-coated onto the springs via a special process, and is not painted on. Madbull have been testing these springs thoroughly and have proven that the length and force remain consistent throughout.

Other features:

Consistent even for 100000 shots!

Non-linear design (calculated)

Colour coating to reduce effects from environment

Designed & Manufactured by experienced engineers.

Premium quality German piano wire