CMMG BBL 300BLK 8″ 4140CM SBN
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CMMG BBL 300BLK 8″ 4140CM SBN
Description
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. ALL NFA RULES APPLY
Additional information
| UPC | 815835016283 |
|---|---|
| Manufacturer | CMMG |
| Manufacturer Part Number | 30D810A |
| Caliber/Gauge | .300 AAC Blackout |
| Length | 8" |
| Model | Barrel Sub-Assembly |
| Rate of Twist | 1:7" |
| Product Type | Rifle |
| Barrel Length | 8" |
