This Sons of Liberty Gun Works Combat barrel is a 13.7 in. 5.56x45 NATO barrel for the AR-15. It has the V2 profile, a 1:7 twist and 1/2x28 muzzle threads, and is made from CMV steel. The 13.7 in. length is often paired with a pinned muzzle device to reach 16 in.
- Caliber: 5.56x45 NATO
- Length: 13.7 in.
- Profile: V2
- Twist: 1:7
- Muzzle threads: 1/2x28
- Steel: CMV
- Fits: AR-15
