Your bolt-action barrel will arrive ready for thread and chamber by your gunsmith. Up to 64% lighter in comparison to traditional barrels, the crew of PROOF Research has done carbon barrels above and beyond all others with their neurotic pursuit of perfection. These carbon fiber barrels are 10 times stronger than steel by weight and nearly impervious to weather, nicks, dings or scratches. These carbon fiber-wrapped barrels provide a high end alternative to traditional barrels while still maintaining extreme accuracy, performance and durability. Match-grade accuracy Improved heat dissipation for cooler and longer lasting barrels No point-of-impact shift Mfg: Proof Research