Receiver PartsAero PrecisionSold by Brownells

Aero Precision

M5 Carbine Complete Lower Receiver W/A2 Grip No Stock - M5 Carbine Compl Lower W/A2 Grip No Stock For Ar .308 Kodiak

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Complete M5

.308 lower receiver for a

Works Standard

Standard AR .308 components and

Rear Takedown

Pin detent hole is threaded

Bolt Catch

Uses a threaded screw pin,

Integrated Trigger

Guard is built into the

$327.25
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SKU: 430106934

Overview

Built as a complete lower receiver for a custom .308 AR setup, this component provides a practical foundation for hunters and shooters assembling a big-bore rifle around standard AR 308 parts and magazines. The included A2 grip and no-stock configuration make it suited to builds where the remaining furniture will be chosen separately. Details such as the integrated trigger guard, threaded rear takedown pin detent hole, and screw-pin bolt catch support a cleaner, more streamlined assembly process. It is a purpose-driven option for those who want a receiver base ready for a tailored rifle build rather than a finished, fully configured lower.

Why Hunters Choose the Aero Precision

Works Standard

Standard AR 308 components and

Integrated Trigger

Guard included for a cleaner

Selector Markings

Support 45, 60, or 90

Accepts Battle

Arms Development short throw safety

Threaded Rear

Takedown pin detent hole for

Key Features

  • Complete M5 .308 lower receiver for a custom big-bore AR rifle build.
  • Works with standard AR .308 components and magazines.
  • Rear takedown pin detent hole is threaded for a 4-40 set screw.
  • Bolt catch uses a threaded screw pin, eliminating the need for a roll pin.
  • Integrated trigger guard is built into the lower receiver.
  • Selector markings support 45, 60, or 90 degree safety selectors.
  • Accepts Battle Arms Development short throw safety selectors and standard selectors.

Best Used For

  • Custom .308 AR builders needing a complete lower receiver as a starting point
  • Hunters assembling a big-bore rifle around standard AR 308 components and magazines
  • Users wanting an integrated trigger guard and threaded lower receiver details
  • Builders planning compatibility with 45, 60, or 90 degree safety selectors
  • Those using aftermarket pistol grips and seeking a no-gap lower receiver fit

Specifications

Accepts Battle Arms Development Short Throw Safety SelectorsYes
Bolt Catch Threaded For Screw Pin No Roll Pin NeededYes
Compatible With Standard SelectorYes
Integrated Trigger GuardYes
No Gap With Aftermarket PisYes
Rear Takedown Pin Detent Hole Threaded For 4 40 Set ScrewYes
Selector Markings Compatible With 45 60 Or 90 Degree Safety SelectorsYes
Works With Standard Ar 308 Components And MagazinesYes

Pros

  • Works with standard AR 308 components and magazines
  • Integrated trigger guard included for a cleaner lower receiver setup
  • Selector markings support 45, 60, or 90 degree safety selectors
  • Accepts Battle Arms Development short throw safety selectors
  • Threaded rear takedown pin detent hole for a 4-40 set screw
  • Bolt catch uses a threaded screw pin, eliminating the roll pin

Considerations & Trade-offs

  • Requires standard AR .308 components and magazines, so compatibility should be confirmed against the rest of the build before purchase.
  • Sold as a complete lower receiver with an A2 grip but no stock, so it is not a finished rifle and will need the remaining parts to be usable as intended.
  • Selector markings are set up for 45, 60, or 90 degree safety selectors; users planning a different selector setup should verify fit and function.
  • The integrated trigger guard and threaded pin features may simplify assembly, but they also mean this lower is tailored to specific assembly preferences rather than a fully generic setup.

Suggested Comparisons

  • AR-10 / .308 lower receiver assemblies
  • Stripped lower receivers
  • Complete lower receivers
  • AR-308 build components

Suggested Accessories

  • AR-308 magazines
  • AR-308 upper receiver
  • Safety selector
  • Lower receiver parts kit

Frequently Asked Questions

What components and magazines does this lower receiver work with?

According to the product data, it works with standard AR .308 components and magazines.

Does this complete lower receiver include a stock?

No. The title identifies it as a complete lower receiver with an A2 grip and no stock.

What safety selector options are supported?

The selector markings will work with 45, 60, or 90 degree safety selectors. It also accepts Battle Arms Development short throw safety selectors and will work with any standard selector.

What installation-related features are built into the lower receiver?

The rear takedown pin detent hole is threaded for a 4-40 set screw, and the bolt catch is threaded for a screw pin so a roll pin is not needed.

Is the trigger guard integrated?

Yes. The product features an integrated trigger guard.