This BCA AR-15 Barrel is a 16" M4 contour barrel made from 4150 chrome moly vanadium steel with a parkerized finished, a 1:7 twist rate and a mid-length gas system. The barrel is chambered in 5.56 NATO and machined with M4 feed ramps in the barrel extension.

All Finished Barrels go through a 100% Inspection Process.

Inspections Equipment includes CMMs and Air Gauges for the Bores.

BCA's expectations are that our Barrels, 16 inches or longer, will hold a 1.000" MOA at 100 yards with appropriate ammo and shooting techniques.