White Label Armory 10.5 inch AR-15 5.56 NATO 1/7 Twist Nitride Barrel

10.5 inch 5.56 NATO AR-15 Barrel, 4150 CMV and Nitrided, 1/7 Twist, Medium Contour Barrel Profile with Carbine length Gas System - made by DRG Manufacturing. Our barrels are produced in-house, from raw bar stock to finished product. We drill, ream, rifle, contour, and assemble with the help of our fully automated and robotic driven production line. All of our barrels are properly stress relieved after rifling, and extensions are torqued after nitride. Our quality control system ensures that all barrels are dimensionally correct and bores fall well within their individual tolerance.Weight1Length10.5ProfileMediumTwist1:7FinishNitrideMaterial4150 CMVThread Pitch1/2x28Caliber5.56 NATOFeed RampM4FlutesN/AGas SystemCarbineRiflingConventionalGas Block System0.750