Welcome to Palmetto State Armory!
A proprietary blend of Hammer forged chrome molly vanadium made by FN that is referred to as "Machine Gun Steel" by virtue of its use in FN's M249 and M240 weapons. The hammer forging process work hardens the steel, making it more durable. In addition, the chrome process for the bore allows for a lining almost twice as thick as a standard M16 for enhanced durability. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, and a Mid-length gas system. The special lighter weight A2 profile barrel allows for better balance and portability over the standard A2 profile and is Mil-spec phosphate coated, High Pressure tested and Magnetic Particle inspected.
Also available as a barrel assembly, which includes a barrel nut and taper pinned stripped front sight base.
It is the customer's responsibility to check the headspace of the barrel and ensure the completed assembly is safe to use. We recommend all builds be inspected by a qualified gunsmith before firing.