The Faxon Firearms AR-15 Pinned Gas Block barrel is precision-engineered for the 5.56x45 NATO cartridge offering a robust solution for your AR-15 build. Weighing in at a lightweight 1.1 lbs this barrel features a Socom contour and a sleek black nitride finish ensuring durability and corrosion resistance. The 10.5-inch length and carbine gas system length provide optimal performance for tactical applications. With a twist rate of 1-8 it promises excellent stability and accuracy for a range of ammunition. Designed with 1/2-28 muzzle threads this barrel is ready to accommodate a variety of muzzle devices making it a versatile choice for firearm enthusiasts seeking reliability and precision.