The stainless steel Freak Insert is the toughest interchangeable bore available for paintball. Each insert has a honed and polished internal bore. High grade stainless steel resists corrosion and scratches no matter where you play. Stainless inserts are available in the following bore sizes: .675 / .677 / .679 / .682 / .684 / .687 / .689 / .691 / .693
