BSF Barrels Bolt Action Barrel Features The Bsf Barrels Carbon Fiber Barrel starts from a turned-down 416R stainless steel match barrel jacketed in a roll-wrapped carbon fiber sleeve under tension rather than simply wrapped around the steel. This process avoids the heat trapping and delamination issues that can occur with standard carbon fiber wraps over time. The carbon fiber is engineered to expand at the same rate as the 416R stainless steel beneath it so the two materials move together as the barrel heats up during extended shooting sessions. For shooters who choose a ported version slots machined into the carbon fiber vent heat quickly without risking separation though this particular barrel is left unported. Because the carbon sleeve is under tension the barrel maintains straighter rifling as it warms helping preserve accuracy across longer strings of fire on the range. This construction keeps the barrel notably lighter than an all-steel equivalent while retaining the stiffness needed for consistent precision shooting. At 22 inches with a 1:8 twist rate button rifled construction and a 5/8x24 thread pattern this .223 Rem barrel weighs 41.10 ounces making it a manageable option for a precision bolt action build. For shooters seeking a lightweight accurate .223 Rem barrel the Bsf Barrels Carbon Fiber Barrel is for sale at GrabAGun. BSF Barrels Bolt Action Barrel Specifications Manufacturer: BSF Barrels Caliber: .223 Rem Barrel Length: 22 Barrel Finish: Carbon Fiber Barrel Material: Stainless Steel Barrel Type: Not Ported Barrel Description: Button Rifled Twist: 1:8 Diameter: .936 Grooves: 6 Thread Pattern: 5/8x24 Weight: 41.10 oz Available At: GrabAGun