Proof Research Tikka Pre-Fit Barrels 7PRC 24in Sendero 8 Twist 5/8x24 Thread Carbon Fiber Graphite/Silver. Simply torque on double check and ensure headspace with proper gauges and head to the range Specifications for Proof Research Tikka Carbon 7mm PRC Threaded Rifle Barrel: Manufacturer: Proof Research Finish: Carbon Fiber Caliber: 7mm PRC Projectile Caliber: .284 Caliber Barrel Material: Carbon Fiber Barrel Twist Rate: 1-8 Barrel Profile: Sendero Threads per Inch: 5/8x24 Gun Make: Tikka Gun Model: Tikka T3x Gun Type: Rifle Flutes: No Barrel Shank Diameter: 1.2 in Application: Shooting Features of Proof Research Tikka Carbon 7mm PRC Threaded Rifle Barrel Lightweight - Up to 64percent lighter than traditional steel barrels of similar contour Extreme Temperature Resistance - Improved heat dissipation for cooler and longer lasting barrels Unprecedented Durability - Wrapped with high-strength aerospace-grade carbon fiber impregnated with a proprietary matrix resin Package Contents: Proof Research Tikka Carbon 7mm PRC Threaded Rifle Barrel What firearm models does the manufacturer say Proof Research Tikka Carbon 7mm PRC Threaded Rifle Barrel is compatible with? The manufacturer says that Proof Research Tikka Carbon 7mm PRC Threaded Rifle Barrel is compatible with Tikka T3xProof Research 134832: Tikka Pre-Fit Barrels 7PRC 24in Sendero 8 Twist 5/8x24 Thread Carbon Fiber Graphite/Silver