.223 / 5.56 1:8 Black Nitride M4 Contour Barrels
- Caliber/Gauge: .223 / 5.56
- Barrel Twist: 1:8
- Barrel Finish: Nitride
- Barrel Profile: M4 Contour
- Condition: New
- Category: .223 / 5.56 1:8 Black Nitride M4 Contour Barrels Clear All Filters
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