In viewing the barrel profile, it is similar to the 16" M4 profile that most of us have grown used to. The machining is smooth, and there are no obvious burrs, nicks, or gouges anywhere. The parkerizing is even and consistent in color. While there are people who feel no need for a M203 cutout on their barrels, it doesn't change that the M4 barrel profile balances much nicer than their heavy weight siblings, especially if you are on target (or pulling perimeter duty) for extended periods of time.