Experience precision and durability with the FN AR15 16" Carbine Barrel expertly crafted from U.S. sourced Chrome Moly Vanadium material. Designed with a robust manganese phosphate finish this barrel is engineered to resist external corrosion and oxidation. Its chrome-lined bore and chamber offer superior protection against heat erosion enhancing the barrel's lifespan and ensuring reliable performance. The M4 style feed ramps and barrel extension provide seamless feeding while the rigorous High Pressure Testing (HPT) and Magnetic Particle Inspection (MPI) guarantee the highest quality and consistency making this barrel a top choice for enthusiasts seeking reliability and endurance.