FN America crafts this 14.7″ button rifled barrel with M16 styling and durable mil-spec steel finished in black manganese phosphate. Chambered in .223 Rem / 5.56x45mm, the barrel features a chrome-lined chamber and feed ramp to ensure reliable, consistent feeding. Manufactured from domestically sourced chrome moly vanadium material to Mil-B-11595E standards, each barrel undergoes high-pressure testing (HPT) and magnetic particle inspection (MPI) to eliminate micro-stresses and imperfections.
The barrel incorporates a 1/2″ x 28 threaded muzzle with a 1:7 RH twist rate, delivering excellent stability and seamless compatibility with standard muzzle devices and suppressors. Chrome-lined bore and chamber resist corrosion and heat erosion, while M4-style feed ramps and barrel extension maintain dependable feeding performance. The mid-length gas system design produces smoother cycling and reduced recoil for enhanced reliability and performance. An excellent choice for mid-length AR-15 builds, this premium FN America barrel delivers the durability, accuracy, and battle-tested reliability that AR platform rifle builders demand.
