5.56 Performance Series

Our Performance Series Barrels are machined from 4150 Chrome Moly Vanadium Steel and feature a QPQ Corrosion Resistant Finish and Nickel Boron Coated M4 Feed Ramp Extension. All Performance Series Barrels are HP and MPI tested. Looking for something else? Save with our 5.56 Modern Series Barrels or upgrade to stainless steel with our 5.56 Premium Series Barrels.

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