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Black AR-15 stripped upper receiver shown from the side with dust cover, forward assist, and Picatinny rail on top against a white background.
A black metal firearm upper receiver with a Picatinny rail on top, shown on a white background.
A flat dark earth colored AR-15 upper receiver, shown from the side, with a dust cover and Picatinny rail on top.

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

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$155.00

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SKU: NIBXURF-C Categories: , ,

Description

NiB-X A3/A4 Upper Receiver with M4 Feed Ramps, Forged, 7075 T6 Mil Spec forging with M4 feed ramps. Built out with a topcoated NiB-X ejection port cover door and forward assist. Ideal building block for a long lasting AR15. This 7075 T6 Aluminum forged Mil Spec 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. A ceramic color topcoat is then applied to the outside of the receiver only. Leaving the inside wear resistant and lubricious. Add an NiB-X charging handle and NiB-X bolt carrier group to compete the upper receiver.

Additional information

Color Black, Firehouse Red, Flat Dark Earth, OD Green

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