Proof Research Big Horn Pre-Fit Barrel Carbon Fiber 6.5 PRC 22 inch 1/7.5 Twist 5/8x24 Thread Sendero Black. Proof Research designed these Rifle Barrels for their 6mm Mag big horn cartridges and they're crafted after an advanced manufacturing process that uses composite materials and thermo-mechanical design principles to create some of the most reliable lightweight carbon fiber rifle barrels possible. This Proof Research Big Horde Pre-Fit 6mm Mag Carbon Fiber Barrel is perfectly fitted for a standard 6-gauge Remington Mag big horn chamber and it's the perfect addition to any build since it's pre-fitted and ready-to-rock when you need it. Snag your own Proof Research Big Horn Pre-Fit Threaded Carbon Fiber Barrel to explore the full capabilities of your 6mm Mag big horn cartridge. Specifications for Proof Research Big Horn Pre-Fit Carbon Fiber Barrel: Manufacturer: Proof Research Color: Black Barrel Material: Carbon Fiber Barrel Profile: Sendero Threads per Inch: 5/8x24 Gun Make: Zermatt Arms Gun Model: Zermatt SR3 Zermatt TL3 Weight: 4 lb Package Contents: Proof Research Big Horn Pre-Fit Carbon Fiber Barrel What firearm models does the manufacturer say Proof Research Big Horn Pre-Fit Carbon Fiber Barrel is compatible with? The manufacturer suggests that Proof Research Big Horn Pre-Fit Carbon Fiber Barrel is compatible with Zermatt TL3 Zermatt SR3Proof Research 113080: Big Horn Pre-Fit Barrel Carbon Fiber 6.5 PRC 22 inch 1/7.5 Twist 5/8x24 Thread Sendero Black