BSF Barrels AR-15 Barrel 6.5 Grendel 18" 1:8" Twist Carbon Fiber

BSF Barrels AR-15 6.5mm Grendel Non-Threaded Barrel 18.5in Rifle Length Fluted 1-8 Twist Gray/Black. We use this jacketing method rather than wrapping the barrel in carbon fiber because this method of wrapping has been proven to trap heat and cause delamination. The carbon fiber we use is specially designed to move at the same expansion rate as 416R stainless steel. We machine slots into the carbon fiber allowing air to move around the barrel and vent heat quicker without any delamination issues. Using the Carbon Fiber this way keeps the rifling straighter the warmer the barrel gets because it's under tension. This allows us to maintain superior stiffness and strength while keeping the barrel extremely lightweight. Specifications for BSF Barrels AR-15 6.5mm Grendel Non-Threaded Barrel: Manufacturer: BSF Barrels Color: Gray/Black Caliber: 6.5mm Grendel Barrel Material: 416R Stainless Steel Gas System Length: Rifle Length Barrel Twist Rate: 1-8 Flutes: Yes Gun Make: AR Platform Gun Model: AR-15 Package Contents: BSF Barrels AR-15 6.5mm Non-Threaded Barrel What firearm models does the manufacturer say BSF Barrels AR-15 6.5mm Grendel Non-Threaded Barrel is compatible with? The manufacturer says that BSF Barrels AR-15 6.5mm Grendel Non-Threaded Barrel is compatible with AR-15BSF Barrels SF3IYT0068: AR-15 6.5mm Non-Threaded Barrel 18.5in Rifle Length Fluted 1-8 Twist Gray/Black