Description
20″ Black Nitride 5.56 NATO, Rifle Gas System, 1:9 Twist Bull Barrel
- Length: 20″
- Material: 4150 Chrome Moly Vanadium
- Finish: Black Nitride
- Gas system: Rifle Length
- Gas Block Diameter: .936
- Thread Pitch: Bull Barrel
- Twist Rate: 1:9
- Weight: 4.0lbs
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