The FN® AR-15 5.56 NATO 1:7 CHF CL Barrel is engineered to give shooters superior accuracy and long-lasting field use with their favorite AR-15 rifle. This barrel is built for a .750” diameter gas block and features 1/2x28 threads, so you can easily add muzzle accessories such as brakes, suppressors, and flash hiders to your favorite rifle. Featuring proprietary Chrome Moly Vanadium (CMV) steel construction, this barrel is hammer-forged for superior strength and long-lasting durability to ensure unparalleled longevity in any shooting application. Further, this barrel is air gauged and Magnetic Particle tested to make sure it’s free of micro-stresses and cracks and is chamfered, deburred, and cryogenically treated to ensure superior accuracy and unparalleled field performance. Order now!