PROOF RESEARCH Sendero Pre-Fit Barrel 7mm Backcountry 20" Fits Zermatt Arms TL3/Zermatt Arms SR3

Caliber swap made simple. PROOF pre-fit carbon barrels for Zermatt TL3/SR3, Origin and RimX thread on in minutes. Torque, check headspace and you're ready to send rounds.Up to 64% lighter compared to traditional steel barrels with a similar contourEnhanced thermal resistance - optimized heat dissipation for cooler and more durable barrelsThe product exhibits exceptional durability, being encased in high-strength, aerospace-grade carbon fiber that is infused with a proprietary matrix resinBarrel twist rate - 1:8