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Aero Precision APAR700514C: 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 Precision'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.
The M4E1 Threaded Upper Receiver is designed to pair perfectly with Aero's new M4E1 Lower Receiver, giving you a billet looking receiver set at a fraction of the billet price.
Bordeaux Red Anodize offers a dark red anodized finish that is sure to make your next build standout from the rest. The shade of red offers a unique color, without the "loud" appearance traditionally found on red anodized finishes. This finish is perfect foundation for your next competition gun, bed sheet r/AR15 post, or blending in at an active volcanic site.
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.