The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big bore build.
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- M4 Feedramps
- .2795 takedown pin holes
- DPMS High Profile (.210) Tang
- Includes port door and forward assist
