DEMO Proof Research Zermatt Arms Steel Pre-fit Barrels 6 Dasher 26in Origin Short 7.5 Twist 5/8-24 Competition. Our pre-fit Zermatt Arms shouldered barrels are easy to install. Simply thread it on torque it down double check headspace and head for the range. Compatibility TL3 / SR3. Barrels chambered for long action cartridges must be used with long action receivers and barrels chambered for short action cartridges must be used with short action receivers. Origin. Drop ins will fit all actions as long as the customer uses the recoil lug supplied with their action. RimX. Drop ins will fit all actions. Specifications for Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrels: Manufacturer: Proof Research Barrel Profile: Competition Gun Make: Zermatt Arms Gun Type: Rifle Flutes: No Action Length: Short Action Features of Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrels: Long-Lasting: Excellent erosion wear characteristics and corrosion resistance Extreme Pressure Resistance: An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing Package Contents: Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrel What firearm models does the manufacturer say Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrels is compatible with? The manufacturer says that Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrels is compatible with Zermatt Origin Zermatt TL3 Zermatt SR3 Zermatt RimXProof Research 121542: Zermatt Arms Steel Pre-fit Barrels 6 Dasher 26in Origin Short 7.5 Twist 5/8-24 Competition