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Brownells

Ar-15 Lower Parts Kit 5.56 - Ar-15 Lower Parts Kit 5.56 No Fire Control Grp/Pistol Grip

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

5.56 Nato

AR-15 lower receiver parts kit

Includes Lower

Parts for building or rebuilding

Does Not

Include a fire control group

Made Usa

High quality Mil-Spec parts

Parts Are

Packaged in color-coded bags for

$29.99
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SKU: 078000330

Overview

Built for standard 5.56 NATO AR-15 lower receivers, this parts kit provides the core lower components needed for a build or rebuild while leaving out the fire control group and pistol grip. The included mil-spec parts are organized in color-coded bags, which helps keep installation straightforward during a bench setup or shop assembly. It is a practical option for shooters who already have the omitted components and want a clean, compatible parts set for a lower receiver project. Brownells lists the kit as made in the USA.

Why Hunters Choose the Brownells

Fits Standard

5.56 NATO AR-15 lower receivers

Includes Key

Lower receiver components for building

Made From

High quality, Made in the

Color Coded

Bags help simplify installation and

Does Not

Include a fire control group

Key Features

  • 5.56 NATO AR-15 lower receiver parts kit for standard Mil-Spec lower receivers.
  • Includes lower parts for building or rebuilding an AR-15 rifle.
  • Does not include a fire control group or pistol grip.
  • Made in the USA with high quality Mil-Spec parts.
  • Parts are packaged in color-coded bags for easier installation.
  • Contains takedown, pivot, bolt catch, buffer retainer, magazine catch, trigger guard, and safety selector components.

Best Used For

  • Building or rebuilding a standard 5.56 NATO AR-15 lower receiver with Mil-Spec compatibility
  • Users who already have a fire control group and pistol grip selected separately
  • Installers who want color-coded parts bags for a more organized assembly process
  • Owners replacing lower receiver components while keeping the build focused on standard parts

Specifications

Bolt CatchIncluded
Bolt Catch PlungerIncluded
Bolt Catch SpringIncluded
Bolt Catch Spring PinIncluded
Buffer RetainerIncluded
Buffer Retainer SpringIncluded
Contains Fire Control GroupNo
Contains Pistol GripNo
Fitsstandard 5.56 NATO AR-15 lower receivers
Made In UsaYes
Magazine CatchIncluded
Magazine Catch ButtonIncluded
Magazine Catch SpringIncluded
Mil SpecYes
Receiver Pivot PinIncluded
Safety SelectorIncluded
Selector DetIncluded
Takedown PinIncluded
Takedown Pin Detent2
Takedown Pin Detent Spring2
Trigger Guard AssemblyIncluded
Trigger Guard Pivot Spring PinIncluded

Pros

  • Fits standard 5.56 NATO AR-15 lower receivers with Mil-Spec compatibility.
  • Includes key lower receiver components for building or rebuilding an AR-15.
  • Made from high quality, Made in the USA parts.
  • Color coded bags help simplify installation and organization.
  • Does not include a fire control group or pistol grip, allowing selective sourcing.

Considerations & Trade-offs

  • Does not include a fire control group, so it is not a complete lower parts solution on its own.
  • Pistol grip is also excluded, so that component must be sourced separately if needed.
  • Specified for standard 5.56 NATO AR-15 lower receivers, so compatibility is limited to that Mil-Spec fitment.
  • The kit is focused on lower receiver components only, which makes it useful for building or rebuilding, but not for a full rifle assembly.

Suggested Comparisons

  • AR-15 lower receiver parts kit
  • AR-15 lower build components
  • AR-15 rebuild parts kit
  • Mil-spec AR-15 small parts kit

Suggested Accessories

  • Fire control group
  • Pistol grip
  • Lower receiver assembly tools
  • AR-15 armorer's wrench

Frequently Asked Questions

What is included in this AR-15 lower parts kit?

The kit includes a takedown pin, receiver pivot pin, two takedown pin detents, two takedown pin detent springs, bolt catch, bolt catch plunger, bolt catch spring pin, bolt catch spring, buffer retainer, buffer retainer spring, magazine catch, magazine catch spring, magazine catch button, trigger guard assembly, trigger guard pivot spring pin, safety selector, and selector det.

Does this kit include a fire control group or pistol grip?

No. The product description states that this kit does not contain a fire control group or a pistol grip.

What receivers does this parts kit fit?

It fits standard 5.56 NATO AR-15 lower receivers and is listed as Mil-Spec.

Is this kit made in the USA?

Yes. The product description says the parts are Made in the USA.

Is this kit intended for a new build or a rebuild?

The description says it is an excellent choice for building or rebuilding an AR-15 rifle.