The Ballistics Advantage 16" 5.56 M4 Carbine Length AR 15 Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. With a carbine gas system length and .750" gas block journal.
- Caliber or Gauge: 223 Remington/5.56 NATO
- Length: 16"
- Model: Modern Series
- Twist: 1:7"
- Sights: None
- Bore Type: Rifled
- Finish: QPQ
- Type: All Purpose
- Barrel Type: M4 Carbine Length
- Barrel Features: Threaded