Standard on the YHM-15 rifles and carbines. Their black plated gas tubes look better than a standard gas tube when used on their vented forearms.
| UPC | 816701015577 |
|---|---|
| Manufacturer | Yankee Hill Machine |
| Manufacturer Part Number | YHM-BL-04A |
| Length | 9.9500 |
| Product Type | Gas Tube |
