YHM has long been a supplier of Caliber Marked upper receivers, but we soon asked ourselves “What if we want to change the caliber of that upper receiver?” For this reason, we now offer caliber marked dust covers for those who may end up changing the caliber of their top end/upper receiver
Assemblies Include the following:
- Caliber Marked Dust Cover
- Rod and Retaining Clip
- Spring
Specifications
| Colors | Black |
|---|---|
| Caliber | 9MM |
| Platform | AR9 |
Compliance
Know all your state laws before purchase is made.
Yankee Hill 9mm Marked Ejection Port Door
Our Price:
$13.75- MSRP$15.95
- SKUURPYHM1119
- MPNYHM-111-9
- UPC816701017724
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