BSF Barrels .243/6mm Bolt Action 20" 1:7.5 Carbon Fiber Rifle Barrel

The BSF Barrels .243/6mm Bolt Action is a precision-engineered replacement rifle barrel chambered for the 6mm/.243 Winchester cartridge family. Built around a button-rifled 416R stainless steel match-grade core and then wrapped in a roll-wrapped carbon fiber sleeve loaded under tension, this barrel delivers the bore geometry and accuracy of a quality stainless match blank with the weight savings and rapid heat dissipation that BSF's carbon-wrapped construction is known for.

At 20 inches long with a 1:7.5 twist rate, this barrel is well suited to stabilize a wide range of 6mm and .243 Win projectiles - from lighter varmint-class bullets up through heavier hunting and target weights. The button-rifled bore provides consistent groove geometry, while the carbon fiber jacket helps vent heat away from the bore and resists point-of-aim shift during extended strings of fire. The muzzle is cut with a standard 5/8x24 thread pattern, ready to accept a broad selection of muzzle brakes, flash hiders, and thread-on accessories.

Designed as a drop-in bolt-action barrel, this blank is intended for custom rifle builders and gunsmiths looking to upgrade an existing action or build a lightweight precision rifle on a standard bolt-action platform. Made in the USA by BSF Barrels, it is a current-production component backed by the company's experience in carbon fiber-wrapped barrel technology.