Receiver PartsAero PrecisionSold by Brownells

Aero Precision

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

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: 430106933

Overview

Built as a complete lower receiver for a custom .308 AR setup, this component gives hunters and rifle builders a ready starting point for a big-bore rifle project. It is designed to work with standard AR 308 components and magazines, and its complete format can simplify the assembly process. Features such as the integrated trigger guard, threaded rear takedown pin detent hole, and screw-pin bolt catch support a clean, practical build. It also accommodates 45, 60, or 90 degree safety selectors, including Battle Arms Development short throw selectors, while remaining compatible with standard selectors.

Why Hunters Choose the Aero Precision

Works Standard

Standard AR 308 components and

Integrated Trigger

Guard simplifies the lower receiver

Threaded Rear

Takedown pin detent hole accepts

Bolt Catch

Uses a threaded screw pin,

Selector Markings

Support 45, 60, or 90

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 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 wanting a complete lower receiver foundation for a tailored rifle setup.
  • Hunters assembling a big-bore AR platform with standard AR 308 components and magazines.
  • Users who prefer a lower with integrated trigger guard and threaded pin features.
  • Builders planning to use 45, 60, or 90 degree safety selectors on an M5 lower.
  • Those seeking a complete lower receiver without a stock for a custom rifle configuration.

Specifications

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

Pros

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

Considerations & Trade-offs

  • Requires standard AR .308 components and magazines, so compatibility is centered on that pattern rather than a universal fit.
  • Sold as a complete lower receiver with no stock included, so the rifle still needs the appropriate stock setup to be finished.
  • Selector markings are designed around 45, 60, or 90 degree safety selectors; users choosing other selector setups should verify fit and function.
  • The integrated trigger guard and threaded pin features may simplify assembly, but they also make this a more specific build platform than a bare lower receiver.

Suggested Comparisons

  • AR-10 / .308 complete lower receivers
  • Stripped lower receivers
  • Lower parts kits
  • AR-308 magazines

Suggested Accessories

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

Frequently Asked Questions

What does this complete lower receiver include?

The source describes it as an M5 .308 Complete Lower Receiver with an A2 grip and no stock. It is sold as a complete lower, but the provided data does not list additional included parts beyond that.

What upper or magazine setup is this lower designed to work with?

It works with standard AR .308 components and magazines, according to the product description.

Does it support different safety selector angles?

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

What assembly features are built into the lower?

The listed features include a threaded rear takedown pin detent hole for a 4-40 set screw, a threaded bolt catch that uses a screw pin instead of a roll pin, and an integrated trigger guard.

Will there be a gap with aftermarket pistol grips?

The product description says there is no gap with aftermarket pistol grips.