This Bear Creek Arsenal AR-15 18″ heavy, parkerized 12.7×42 barrel has a mid-length gas system with a 1:20 twist . Our 12.7×42 parkerized rifle barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy at a great price. Use a Bear Creek Arsenal ar barrel in your AR15 next build and experience superior performance back by a lifetime warranty!
All finished barrels go through a 100% inspection process. Inspections Equipment includes CMMs and Air Gauges for the bores as well as visual and machine inspection.
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We recommend Defender 350 gr. ammo
