Description
Spring is primary designed for original plastic pistons of the TM VSR, BAR10, Well, Snow Wolf, CYMA and all other braands with the plastic pistons. Many tuning springs has a large outer diameter and can not be inserted into the original pistons. Whether plastic or metal. Our offered spring is suitable for basic pistons and gives about 155 m / s (510 FPS). The spring is made of spring steel with proper heat treatment. It is not applicable for manual SVD Dragunov rifle from A a K.
