Laylax is known for some of the highest quality parts manufactured in the birth place of Airsoft itself, Japan. Constructed from stainless steel and featuring a ball bearing design, this spring guide is a definite necessity for those upgrading the FPS of their VSR-10. When installing a higher rating spring into a rifle, the spring guide suffers a great deal of stress due to the increased tension. Knowing this, the standard plastic guide is insufficient and will fail in due time. Replacing the stock spring guide with the Laylax PSS10 Spring Guide not only ensures durability but also ensures that the spring will not bind due to the bearing design.