5.56 NATO, 16" Parkerized M4 Barrel, 1:7 Twist, Carbine Gas System

AR-15 16" M4 contour parkerized barrel has a carbine length gas system with a 1:8 twist rate. It is chambered in 5.56 NATO. All Finished Barrels go through a 100% Inspection Process. Inspections Equipment includes CMMs and Air Gauges for the Bores. Made in the USA