Aero M5 Complete Lower Receiver W/Moe Grip

The Aero Precision M5 complete lower receiver with MOE grip is a finished, ready-to-assemble lower receiver built for .308-class AR platform rifles. If you're building a full-size rifle in .308 Winchester, 6.5 Creedmoor, or another large-frame cartridge, this is your starting point—a properly engineered lower that handles the added recoil and bolt thrust of those calibers with the precision Aero is known for. Comes complete with a Magpul MOE grip already installed, so you're that much closer to having a finished rifle.

Because this is a complete lower (not a stripped receiver), you're getting all the internal parts already fitted and ready. That means no gunsmithing, no hunting for out-of-stock internal components, and no guesswork on fit and function. Whether you're assembling a precision rifle, a hunting platform, or a versatile range gun, starting with a quality M5 lower takes the guesswork out of the foundation.

Aero Precision's reputation rests on tight tolerances and consistent quality—and this lower lives up to that. The receiver itself is hard-coat anodized for durability in the field or at the range. Pair it with an M5 upper of your choice, add a bolt carrier group and charging handle, and you've got a rifle. For AR builders who want a complete, no-surprises lower receiver without the assembly work, this is a smart choice.

Key Features

• Complete lower receiver—all internal parts pre-installed and ready to function
• Designed for large-frame .308 and magnum cartridges
• Magpul MOE grip included
• Hard-coat anodized finish for durability and corrosion resistance
• Tight tolerances and proven Aero Precision engineering

Specifications

Frequently Asked Questions

What calibers does this M5 lower support?

The Aero M5 is a large-frame receiver designed for .308-class rifles. You'll pair it with an M5 upper and bolt carrier group in your desired caliber—common choices include .308 Winchester, 6.5 Creedmoor, and other magnum cartridges. Verify upper and barrel compatibility with your specific caliber choice.

Is this lower already assembled, or do I need to finish it?

This is a complete lower receiver. All internal parts are installed and ready to function. You do not need to assemble the lower itself. You'll need to source an upper receiver, bolt carrier group, charging handle, and ammunition to complete and fire a rifle.

Can I use this with an AR-15 upper receiver?

No. The M5 is a large-frame receiver designed for .308 and magnum cartridges. It is not compatible with standard AR-15 (5.56/.223) uppers. You must use an M5-specific upper receiver.

What grip is included?

This lower comes with a Magpul MOE (Magpul Original Equipment) grip already installed. It is removable if you prefer a different grip later.