Pirani molla TOP 100
PIRANI SPRING TOP 100
Springs made in Italy, with rectified and self-centering support surface, identifying spring force color. Anti-corrosion treatment, spring with variable pitch. Built with pre-hardened steel. The springs have been tested on VFC M4 modified with two bearings, normal stroke, 270mm barrel, hop up and 0.20gr pellets, giving the values expressed by the spring