FN AR-15 Barrel 16" 5.56x45mm NATO Button Rifled M16 Profile Carbine Length Gas System, Black Phosphate - 20100039

This FN AR-15 barrel is a 16" carbine length barrel chambered in 5.56x45mm NATO with button rifling and M16 profile. The barrel features chrome-lined bore and chamber for corrosion resistance and extended barrel life, cold hammer forged construction, and is manufactured from U.S. sourced Chrome Moly Venadium material per Mil-B-11595E specifications. Each barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) for quality assurance.