This incredible barrel is exactly what you need to get into the pistol caliber carbine game! This Mil-Spec 16\" barrel features a medium profile and a beautiful smooth black nitride finish. This model is also threaded 1/2X36, which is great for adding any 9mm approved muzzle device of your choosing. This barrel is incredibly accurate and produces impressive groups with appropriate ammunition. This barrel is also built like a rock to withstand high round counts and many trips to the range.