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 ideal upper for your big bore build. It includes M4 Feedramps,.2795 takedown pin holes (DPMS size), and DPMS High Profile (.210) Tang). This addembled upper receiver is finished in FDE Cerakote.
Note: Aero Precision is listing these under a Blem SKU meaning that they will have a very minor cosmetic blemish of some kind that will in no way affect the function of the product. In our experience, this typically amounts to a minor run-in the anodize or a slightly different color variation than the norm. In most cases, we can not see why they are called blems. They have even told us that the blem in the finish could be hidden away due to it being on the internal surface of the receiver.