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Aero Precision APAR700515C: The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as Aero's M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum and precision machined to work with all mil-spec AR15 parts.
This shade of anodized blue is subdued, low profile, and provides a slight contrast variation when compared to the traditional black anodized that has become standard today. This finish provides a muted blue finish that still provides functionality while providing a unique look to make your next build standout from the rest!
NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. The lighter coloring allows certain aesthetic marks on the material to be visible through the finish. Some may show more or fewer signs of these defects, but the parts are guaranteed to be quality and in spec. There are also slight color variances between different materials when colored anodizing is applied.