Packaging: 1 Spring + 1 Nut
New 5mm S5 YOW spring for the V4 system. Spring with another round and with the "Peening Shot" treatment. Now the reinforced spring lasts up to twice the work with maximum performance. Shot blasting is a special technology for surface treatment with micro-sandblasting. The goal of this process is to increase the fatigue resistance of components subjected to strong stresses. Your Own Wave.