Rob Allen shafts, double notch. Notches are smooth, ideal for the use of dyneema wishbones. Railgun shafts are engineered from ultra tough oil-quenched carbon spring steel. Highly durable tri-cut tips ensure efficient penetration. Once ground and polished, the shafts are zinc plated to combat corrosion. Fixed barb shafts suit the nature of the Railgun and offer a faster and more accurate piece of equipment.