DEMO Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel 26 inch Competition 1-7.5 Twist 5/8-24 Silver. Their 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. Specifications for Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel: Manufacturer: Proof Research Color: Silver Finish: Stainless Steel Caliber: 6mm GT Projectile Caliber: .243 Caliber Barrel Length: 26 in Barrel Material: Steel Barrel Twist Rate: 1-7.5 Barrel Profile: Competition Firearms Threads Per Inch: 5/8x24 Gun Make: Zermatt Arms Gun Model: Zermatt SR3 Zermatt TL3 Weight: 7.5 lb Gun Type: Rifle Flutes: No Barrel Shank Diameter: 1.25 in Application: Shooting Features of Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT 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 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 Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel What firearm models does the manufacturer say Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel is compatible with? The manufacturer says that Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel is compatible with Zermatt TL3 Zermatt SR3Proof Research 133477: Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel 26 inch Competition 1-7.5 Twist 5/8-24 Silver 133477