M5 (.308) ASSEMBLED UPPER RECEIVER THREADED KODIAK BROWN

The Aero Precision M5 (.308) Assembled Upper Receiver in Threaded Kodiak Brown is a purpose-built platform for hunters and long-range shooters building a big-bore AR in .308 Winchester. Starting with 7075-T6 aluminum forgings and precision-machined to Aero Precision specs, this upper receiver handles the demands of serious rifle work without compromise. The threaded barrel extension accommodates suppressors and brakes, while the Kodiak Brown finish—applied via hard coat anodizing to Mil-Spec 8625 Type 3 Class 2 standards—delivers a durable, attractive alternative to standard black while maintaining corrosion resistance in the field.

This is a complete assembled upper, so forward assist and ejection port cover arrive installed and ready to function. It's chambered for DPMS pattern .308 components, which means you have broad compatibility across bolt carriers, charging handles, barrels, and lowers from the major makers in the DPMS ecosystem. The M4 feedramps ensure reliable feeding with match-grade and hunting ammunition alike. DPMS-pattern takedown holes (.2795″ diameter) lock in compatibility with standard DPMS pattern lowers, giving you flexibility when pairing it with your lower receiver of choice.

Whether you're building a precision rifle for competition, a hunting upper for medium to long-range game, or adding a .308 to your AR platform arsenal, the Aero Precision M5 upper is a solid foundation. The threaded muzzle and factory finish make it ready to customize further—add a handguard (works with DPMS high-profile options), configure your charging handle, and match it to your lower. No guesswork, no fitment surprises.

Key Features

• 7075-T6 aluminum forging for strength and durability in a .308 platform
• Precision-machined to Aero Precision specifications for reliable performance
• M4 feedramps for dependable ammunition feeding
• Threaded barrel extension for suppressors and muzzle brakes
• Mil-Spec hard coat anodizing (8625 Type 3 Class 2) in distinctive Kodiak Brown
• DPMS pattern compatibility for broad component interchangeability
• Forward assist and ejection port cover pre-installed
• Compatible with DPMS high-profile handguards

Specifications

Frequently Asked Questions

Will this upper receiver work with my DPMS pattern .308 lower?

Yes. The M5 upper features DPMS-pattern takedown holes (.2795″) and is designed for full compatibility with standard DPMS pattern .308 lowers, bolt carriers, and other components in that platform.

Is the threaded barrel extension pre-installed?

The upper arrives fully assembled, including the forward assist and ejection port cover. The threaded barrel extension is part of the upper; you can attach a suppressor or muzzle brake to it immediately.

What kind of handguard fits this upper?

The M5 upper is compatible with DPMS high-profile handguards. Confirm compatibility with your chosen handguard before purchase.

What finish does this upper come in?

This upper receiver features a Kodiak Brown finish, applied via hard coat anodizing to Mil-Spec 8625 Type 3 Class 2 standards. It's a durable, corrosion-resistant alternative to black anodize.