5.56 NATO, 10.5" Parkerized M4 Barrel, 1:7 Twist, Carbine Gas System

AR-15 10.5" Parkerized M4 Contour barrel with a 1:7 twist rate and Carbine length gas system. It is chambered in 5.56 NATO. Finished Barrels go through a 100% Inspection Process. Inspections Equipment includes CMMs and Air Gauges for the Bores. Made in the USA