This 5.56 chambered 18 inch Modern Series Barrel is 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.
Features:
- 4150 Chrome moly vanadium
- SPR profile
- QPQ finish
- Rifle-length gas system
- 1:7 twist
Specifications:
- Barrel Length: 18"
- Caliber: 556NATO
- Description: SPR Rifle Barrel With Ops 12 Profile
- Finish: Bead Blasted
- Manufacturer Part #: BABL556020M
- Model: Modern Series
- Subcategory: Rifle Barrels
- Type: Barrel
- Type of Barrel: 1:7