The Aero Precision M5 AR10 Assembled Upper Receiver in Brown (brand part no. APAR308515AC) gives .308/7.62 NATO builders a ready-to-use foundation for their next AR10 project, with the ejection port door and forward assist hardware already installed at the factory. Forged from 7075-T6 aluminum and precision machined to accept standard .308 components, this upper receiver saves the builder from sourcing and fitting the small parts separately. It’s designed to pair directly with Aero’s own M5 .308 lower receiver for a solid, dependable fit, making it a straightforward starting point for a precision rifle, a hunting build, or a duty-grade AR10. Aero Precision finishes the receiver in a durable hard-coat anodized Kodiak Brown, matching the rest of its M5-series color options.

Key Specifications

• Chambered for the .308/7.62 NATO AR10 platform, matching standard M5-pattern components.
• Comes assembled with the ejection port door and forward assist hardware preinstalled at the factory.
• Forged from 7075-T6 aluminum, a high-strength material standard for mil-spec receiver sets.
• Finished in a hard-coat anodized Kodiak Brown for builders matching a hunting or field-oriented color scheme.
• Precision machined to accept standard .308 components, keeping parts compatibility straightforward.
• Designed to mate with Aero’s M5 .308 lower receiver for a verified, solid fit.
• Ships as the receiver only, without a barrel or bolt carrier group included.

Frequently Asked Questions

Does this upper come with a barrel or bolt carrier group? No, this is the bare upper receiver only, assembled with the port door and forward assist installed.

What lower receiver is this designed to pair with? Aero Precision’s M5 .308 lower receiver, for a matched, solid fit.

What material is the receiver made from? Forged 7075-T6 aluminum, precision machined to accept standard .308 AR10 components.

Buy the Aero Precision M5 AR10 Assembled Upper Receiver Brown

Start your next .308 build on a verified receiver from Aero Precision, part of our AR10 uppers lineup. Order it from our Lubbock, Texas gun shop as soon as it’s available to ship.