BRX1 Caliber Conversion kit, compatible with all BRX1 rifles. Kit includes all necessary components to change caliber.Includes Bolt Head for .243win, Barrel with 0 MOA Picatinny rail mounted, and 5rd Magazine for .243win. Item specifications: Barrel caliber: .243 Win Barrel configuration: Heavy profile (19mm diameter) with 5/8-24 thread Made in Italy.
