Aero Precision M5 (.308) Assembled Upper Receiver Threaded Od Green Apar308

The Aero Precision M5 (.308) assembled upper receiver is a premium forging for hunters and long-range shooters building a big-bore AR platform. Machined from 7075-T6 aluminum and finished in a hardened matte black anodize, this DPMS-pattern upper gives you a solid foundation for a reliable 308 Winchester or related cartridge rifle. It comes ready to work—forward assist and ejection port cover are already installed—so you can focus on pairing it with your preferred bolt carrier, barrel, and handguard.

Built to Aero Precision's exacting tolerances, the M5 features M4-style feedramps and integrates with the full range of DPMS-compatible 308 components on the market. The DPMS pattern takedown holes ensure a secure fit with standard lower receivers, while the matte black hard coat anodize (Mil 8625 Type 3 Class 2) resists corrosion in the field. Whether you're assembling a hunting rifle, a precision target gun, or a dependable range workhorse, this upper receiver gives you the quality and flexibility that defines Aero Precision's reputation.

Note: This is an upper receiver assembly only. You'll need a compatible DPMS-pattern 308 lower receiver, bolt carrier group, charging handle, and barrel to complete your build. The upper works with standard DPMS high-profile handguards for mounting optics and accessories.

Key Features

• 7075-T6 aluminum forging with precision machining for strength and durability
• M4 feedramps for reliable feeding across 308 cartridges
• Matte black hard coat anodize finish (Mil 8625 Type 3 Class 2) resists wear and corrosion
• Forward assist and ejection port cover pre-installed
• DPMS pattern takedown holes for compatibility with standard 308 lowers
• Works with DPMS high-profile handguards and full range of DPMS 308 components

Specifications

Frequently Asked Questions

Will this upper work with my 308 lower receiver?

This is a DPMS-pattern M5 upper receiver. It's compatible with DPMS-pattern 308 lower receivers and will not work with ArmaLite-pattern or other non-DPMS lowers. Verify your lower's pattern before purchasing.

What do I need to complete a 308 upper receiver build?

You'll need a DPMS-pattern 308 lower receiver, a bolt carrier group, a charging handle, a 308 barrel, and a DPMS high-profile handguard. This upper assembly comes with the forward assist and ejection port cover already installed.

What handguards work with this upper?

This upper is compatible with standard DPMS high-profile handguards. Check your handguard's compatibility specs to ensure it fits DPMS M5-pattern receivers.

What's the finish like, and will it hold up to hunting?

The receiver features a Mil-spec hard coat anodize (Mil 8625 Type 3 Class 2) in matte black. This finish is designed to resist corrosion and wear in field conditions, making it suitable for hunting and regular use.