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A bronze-colored AR-15 upper receiver.
Flat dark earth AR-15 stripped upper receiver with a closed ejection port cover.

NiB-X AR-15 A3/A4 Complete Upper Receiver Forged with M4 Feed Ramps, EPCA and Forward Assist

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SKU: NIBXURF Categories: ,

Description

NiB-X A3/A4 Upper Receiver with M4 Feed Ramps, Forged, Ejection Port Cover Door and Forward Assist, 7075 T6 Mil Spec forging with M4 feed ramps. Ideal building block for a long lasting AR15. This 7075 T6 Aluminum forged Mil Spec stripped receiver with M4 feed ramps has NiB-X coating inside and out to provide an exceptionally tough, ultra-smooth surface finish for outstanding wear resistance and lubricity. Standard colors available are Black, Flat Dark Earth or OD Green among others. Please see our Complete Upper Receiver Forged – Color for options. This upper works with standard carriers but is even smoother with our NiB-X coated bolt carrier and NiB-X charging handles (available separately).

Additional information

Coating NiB-X, Nitrided

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