The Lonex Reinforced Spring Guide V3 Parts are the perfect selection for airsoft enthusiasts and technicians looking to improve the power and durability of their replicas. Utilizing premium materials, expert assembly techniques, and a long lifespan, this manufacturer stands among the elite in the realm of tuning products. Made with the highest-quality steel, this spring guide is designed specifically for V3 gearboxes and features ball bearings to reduce wear and tear on the spring. Details: Gearbox V3 Material - Steel Color - Silver Weight - 20 g Manufacturer - Lonex.