Designed to increase your range and accuracy, PMA’s Chromoly steel 5.56 barrel is 16 inches long and fits any standard AR-15 upper receiver. This barrel has a 0.073-inch drilled gas port and a 1/2-inch 28 thread pitch. Choose between the 4150 chromoly phosphate or chrome lined models.
Our AR15 barrels are made in the USA from 4150 CMV steel bar stock and features a durable Nitride finish and M4 feed ramps. It’s built with a mid-length gas system and a 1-8 twist rate. That twist rate is current MILSPEC is designed to help you stabilize heavier rounds No matter your needs, this is the barrel that will take you there. Order yours today!