Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced.
| UPC | 815835016238 |
|---|---|
| Manufacturer | CMMG |
| Manufacturer Part Number | 30D120A |
| Barrel Length | 16.1" |
| Caliber/Gauge | |
| Color | Black |
| Length | 16.10" |
| Model | Barrel Sub-Assembly |
| Product Type | |
| Rate of Twist | 1:7" |
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