One in seven" twist improved polygonal rifling. Stainless steel, medium contour. Extended feed ramps, bead blasted finish, mid length gas system. 1/2x28 threads. Gas tube and pinned low profile gas block. Weighs 32 ounces. Barrel ships with gas block installed. Designed for our gas block that is one" long (included). Standard front sight base is 1.9 inches long and will not fit. Removal and installation of the gas block dowel pin and gas block is required to complete the assembly process. Installation should be performed by a qualified gunsmith.
- Barrel Length : 14.5
- Caliber : 5.56mm
- Finish : SS
- Item Description : NKE AFGHN W/PIN GB 5.56 14.5
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