BSF Barrels AR10 Barrel Features The Bsf Barrels .22 Creedmoor barrel starts as a turned down 416R stainless steel match barrel before being jacketed in a roll wrapped carbon fiber sleeve loaded under tension a process chosen specifically to avoid the heat trapping and delamination issues that come from directly wrapping a barrel in carbon fiber. The carbon fiber material is engineered to expand at the same rate as the 416R stainless steel underneath it keeping the two materials working together as the barrel heats up during firing. Slots machined into the carbon fiber allow air to move around the barrel venting heat more quickly without risking delamination. This construction keeps the rifling straighter as the barrel warms maintaining accuracy through longer strings of fire. Built for the AR10 platform this 20 inch barrel uses a button rifled 1:8 twist rate with 6 grooves a specification suited to stabilizing .22 Creedmoor bullets at extended ranges. The barrel measures .875 inches in diameter and is threaded 5/8x24 to accept a wide range of muzzle devices. Under tension carbon fiber construction keeps the barrel extremely lightweight while maintaining the stiffness and strength shooters expect from a precision barrel. The Bsf Barrels .22 Creedmoor barrel is available for sale at GrabAGun for AR10 shooters seeking a lightweight high performance upgrade. BSF Barrels AR10 Barrel Specifications Manufacturer: BSF Barrels Caliber: .22 Creedmoor Barrel Length: 20 Gun Platform: AR10 Barrel Material: Stainless Steel Barrel Finish: Carbon Fiber Barrel Description: Button Rifled Twist: 1:8 Diameter: .875 Grooves: 6 Thread Pattern: 5/8x24 Available At: GrabAGun