Receiver PartsAero PrecisionSold by Brownells

Aero Precision

Gen 2 Stripped Lower Receiver For Ar-15 - Ar-15 Stripped Lower Receiver, Ral8000

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

Ar-15 Gen

2 stripped lower receiver for

Machined Mil-spec

Dimensions for standard AR-15 components

Upper Tension

Standard AR-15 uppers

Increased Magwell

Flare supports easier magazine insertion

7075 T6

Hardcoat anodized finish

$110.49
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SKU: 430100318

Overview

Built as a foundation for a custom AR-15 setup, this stripped lower receiver is intended for builders who want a receiver that works with standard AR-15 components. Its Gen 2 updates include an upper tension screw for fine-tuning receiver fit and an increased magwell flare to help with magazine insertion. Machined to mil-spec dimensions and finished in hardcoat anodized 7075 T6 aluminum, it is a practical choice for a serious build where component compatibility and fit matter. FFL required for purchase.

Why Hunters Choose the Aero Precision

Machined Mil-spec

Standard AR15 components

Upper Tension

Screw lets users fine tune

Increased Magwell

Flare supports easier magazine insertion

Stripped Lower

Solid base for a custom

7075 T6

Hardcoat anodized finish

Key Features

  • AR-15 Gen 2 stripped lower receiver for a custom build
  • Machined to mil-spec dimensions for standard AR-15 components
  • Upper tension screw helps fine-tune fit with standard AR-15 uppers
  • Increased magwell flare supports easier magazine insertion
  • 7075 T6 aluminum construction with hardcoat anodized finish
  • Small pin .154-inch hammer and pin holes
  • .250-inch pivot and takedown pin holes
  • FFL required for purchase

Best Used For

  • Custom AR-15 builders starting with a stripped lower receiver and standard components
  • Users wanting a mil-spec dimensioned base for a personalized AR-15 setup
  • Builders who value the upper tension screw for fitting a standard AR-15 upper
  • Those seeking a lower receiver with an increased magwell flare for easier magazine insertion

Specifications

Blade Finishhardcoat anodized
Ffl RequiredYes
Hammerpin Hole Size.154" (3.9mm)
Included ItemsStripped AR15 Lower Receiver
Magwell FlareIncreased
Material7075 T6 aluminum
Mil Spec DimensionsYes
Pivottakedown Pin Hole Size.250" (6.3mm)
Upper Tension ScrewIncluded

Pros

  • Machined to mil-spec dimensions for compatibility with standard AR15 components.
  • Upper tension screw lets users fine tune upper and lower receiver fit.
  • Increased magwell flare supports easier magazine insertion.
  • Stripped lower provides a solid base for a custom AR15 build.
  • 7075 T6 aluminum construction with hardcoat anodized finish.
  • Small pin and .250-inch pivot/takedown pin hole specifications are clearly defined.

Considerations & Trade-offs

  • This is a stripped lower receiver, so it is only the starting point for a custom AR-15 build and does not include the components needed for a complete lower assembly.
  • The upper tension screw is intended to fine tune fit with a standard AR-15 upper, but actual fit still depends on the specific upper receiver used.
  • It uses small pin .154" hammer/pin holes and .250" pivot/takedown pin holes, so compatibility should be checked against the parts selected for the build.
  • FFL required for purchase, which adds a transfer step before it can be received.

Suggested Comparisons

  • AR-15 lower receivers
  • AR-15 upper receivers
  • AR-15 lower parts kits
  • AR-15 receiver sets

Suggested Accessories

  • AR-15 upper receiver
  • AR-15 lower parts kit
  • AR-15 magazine
  • AR-15 buffer tube assembly

Frequently Asked Questions

What is included with this lower receiver?

The listing says it includes a stripped AR15 lower receiver. No additional parts are listed.

Is this lower receiver compatible with standard AR-15 components?

Yes. The description says it is machined to mil-spec dimensions and works with standard AR15 components.

What are the Gen 2 changes on this receiver?

The Gen 2 updates listed are an upper tension screw for fine-tuning upper-to-lower fit and an increased magwell flare for easier magazine insertion.

What specifications are provided for the pin sizes?

The specs list small pin .154" (3.9mm) hammer/pin holes and .250" (6.3mm) pivot/takedown pin holes.

Is an FFL required for purchase?

Yes. The product data states that an FFL is required for purchase.