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This Bear Creek Arsenal AR-15 7.5" M4 profile parkerized 10MM barrel has a blowback gas system with a 1:16 twist. Our AR-10MM 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 next AR build and experience superior performance backed by a lifetime warranty!
WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to the California P65 Warning site.