Welcome to Palmetto State Armory!
PSA 20" 5.56 NATO Hammer Forged 410 Stainless Steel Heavy profile barrel.
The barrel bore is hammered into shape, with the lands and grooves of the bore formed around a tapered mandrel. This hammer forging process work hardens the steel, making it more durable. Chambered in 5.56 NATO, with a 1/7 twist, M4 barrel extension, recessed target crown, and rifle length gas port.
Please check the barrel closely for any irregularities. It is the builder's responsibility to check headspace before assembling.
In the unlikely event you have an issue with a barrel, STOP AND DO NOT ASSEMBLE. Contact Customer Service.