The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and features M4 feedramps.
These contain cosmetic blemishes. Most are internal. Blemishes do not affect function.
Pair well with both Aero Precision and Black Creek Precision lower receivers.
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