This Sons of Liberty Gun Works Combat barrel is a 20 in. 5.56x45 NATO barrel with a front sight base (FSB) in the government profile. It has a 1:7 twist and suits classic rifle-length AR-15 builds that use a fixed front sight.
- Caliber: 5.56x45 NATO
- Length: 20 in.
- Profile: Government
- Front sight base: Yes (FSB)
- Twist: 1:7
- Fits: AR-15
- UPC: 676821441140
