CMMG Mk4 stripped upper receiver ready to customize for your own AR build. Does not include forward assist, dust cover, bolt assembly, charging handle barrel nut, delta ring, and is made of 7075 T6 aluminum.
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Type : Upper Receiver
Model : M16/AR15
Size : 223
Material : 7075 T6 Aluminum
Finish : Black
Current Reviews: 0
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