M150 Irregular Pitch Main Spring
Main spring made from tempered steel made for ASG replicas. The spring has irregular pitch, which results in smaller stress on the gearbox whilst retaining high power. It also prevents its breaking and reduces the effect of compression, thus extending the spring’s usability and the period of retaining its stock technical parameters. The power drained from installation of a main spring depends on how well sealed is a system, the type of implemented cylinder as well as barrel length and its diameter. Furthermore, the spring has universal size, which makes it compatible with every standard gearbox.