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The Rosco Manufacturing Bloodline Heavy Barrel 300 Blackout 16 Inch 1:8 Twist Nitride Black is a rifle barrel designed for AR-15 platform builds chambered in 300 Blackout. This rifle barrel features a 16 inch length with a heavy profile and a 1:8 twist rate for projectile stabilization.
The Rosco Manufacturing Bloodline rifle barrel is made from 4150 CMV steel and uses a nitride finish for surface treatment. It includes a 5/8×24 thread pitch for muzzle device attachment and is configured for compatibility with 300 Blackout ammunition types. The heavy contour provides a specific barrel profile classification, and the twist rate defines bullet stabilization characteristics. This model is used for rifle assembly and field configurations requiring a 16 inch 300 Blackout barrel with standardized threading.
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