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


NiB-X A3/A4 Upper Receiver w/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).



15 in stock

Categories: , SKU: NIBXURF


NiB-X A3/A4 Upper Receiver w/M4 Feed Ramps, Forged, with Ejection Port Cover Door Assembly and Forward Assist




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