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The Ballistics Advantage 18" 5.56 SPR Rifle Length AR-15 Modern Series Barrel w/Ops 12is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. This barrel features a longer .750" profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.
- Caliber or Gauge: 223 Remington/5.56 NATO
- Length: 18"
- Model: Modern Series
- Twist: 1:7"
- Sights: None
- Finish: QPQ
- Type: Rifle
- Barrel Type: Rifle Length SPR Profile
- Barrel Features: Ops 12
