Product Description
This is a dissipator-style 16" barrel made from 4150 machine gun steel with a phosphate finish and a 1/7 twist rate. The bore is chrome-lined, and it features a rifle-length gas system with a .120 port size. The gas block measures .625, and the barrel includes M4 feed ramps, chambered in 5.56. Comes with an FSB, barrel nut, and end cap. The profile behind the gas block uses our rigid profile to prevent barrel whip.
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Great barrel!
I put this together with a Microbest M16 BCG, rifle buffer, Sprinco Green and puts ejection right at 4:00 so gas is appropriate, don't fear the big port. Accuracy with cheap M193 rings 6" steel all day at 100yds w/open sights. I dig it! Lighter profile will get hot but you probably already knew that.