Ballistic Advantages 5.56 chambered 13.9 inch Government Profile Mid-length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.
- ,Length: 13.9″;”Material: 4150 Chrome Moly Vanadium,
- Profile: Government
- Finish: QPQ Corrosion Resistant
- Twist Rate: 1:7 inches
- Gas System Length: Mid-Length
- ,Gas Block Journal: .750″;”Muzzle: 1/2×28 Threaded,
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