CMMG's Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension.
| Type | Rifle |
|---|
| Model | AR-15 |
|---|
| Twist | 1:10" |
|---|
| Finish | Stainless Steel |
|---|
| Length | 18" |
|---|
| Series | HT |
|---|
| Caliber Or Gauge | 308 Winchester/7.62 NATO |
|---|
Determined at checkout.
