Proof Research Tundra Features The Proof Research Tundra is built around a carbon fiber wrapped match grade barrel a construction method that sheds significant weight compared to a traditional steel barrel while improving heat dissipation and maintaining accuracy shot after shot. The 1-in-8 twist rate stabilizes a wide range of 7mm Backcountry bullet weights giving hunters flexibility in load selection for different game and distances. A threaded 5/8x24 muzzle allows the rifle to accept a suppressor or muzzle brake which helps manage recoil on a rifle this light. Together these features make the Tundra a serious long-range hunting tool built to be carried far into the field without sacrificing precision. The Tundra s carbon fiber stock is a core part of its weight-saving design contributing to a total rifle weight of just 8 lbs 2 oz despite its full-length 20 barrel. That lightweight build reduces fatigue on long stalks and steep terrain letting hunters move faster and stay ready when a shot opportunity presents itself. The rifle ships with no sights installed reflecting its intended use with a mounted riflescope for precision shot placement at distance. Proof Research s reputation for match grade carbon fiber barrels backs this rifle as a dependable purpose-built platform for the backcountry hunter who demands both accuracy and portability in a single package. Proof Research Tundra Specifications Brand: Proof Research Model: Tundra Action: Bolt Action Caliber: 7mm Backcountry Barrel Length: 20 Twist Rate: 1-in-8 Capacity: 4+1 Stock: Carbon Fiber Stock Finish: Black Thread Pattern: 5/8x24 Threaded Barrel: Yes Weight: 8 lbs 2 oz Available At: GrabAGun