Faxon Duty Series Gunner AR-15 Barrel 5.56x45mm NATO 11.5" Gunner Contour 1:8" Twist QPQ Black

Overview

The Faxon Duty Series Gunner AR-15 barrel is an 11.5-inch barrel chambered in 5.56x45mm NATO with a 1:8-inch twist rate. Constructed from 4150 CMV steel, it features a QPQ nitride finish on both the interior and exterior to provide corrosion resistance and durability. The barrel utilizes a Big Gunner hybrid profile and is compatible with standard Mil-Spec pattern AR-15 upper receivers. It is threaded 1/2x28 and includes an 11-degree target crown. The barrel is button-rifled and features a .625-inch gas block journal. Because of the shorter dwell time associated with this length, the use of an adjustable gas block is recommended for optimal functionality. Each barrel is magnetic particle inspected and individually checked for headspace.

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