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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







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Yankee Hill 6.8mm Marked Ejection Port Door

Our Price:

  • MSRP$15.95
  • SKUURPYHM11168
  • MPNYHM-111-68
  • UPC816701017694
Yankee Hill 6.8mm Marked Ejection Port Door $13.75

Total in stock: 11

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5004 State Highway 74 Cape Girardeau, MO 63701
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