Receiver PartsAmerican Defense ManufacturingSold by Brownells

American Defense Manufacturing

Ar-15 Uic Stripped Lower Receiver Ambidextrous - Ar-15 Uic Stripped Lower Ambi Receiver 5.56mm

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

Stripped Ar-15

Lower receiver from American Defense

Ambidextrous Uic

Lower receiver design

Machined Radii

Radii and chamfer cuts

20-degree Magwell

Cut for faster reloads

Reinforcing Ribs

For added strength

$399.99
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SKU: 100035875

Overview

Built for shooters assembling a custom AR-15 platform, this stripped lower receiver is aimed at those who want more than a basic mil-spec foundation. It incorporates ambidextrous features along with radii and chamfer cuts, and its 20-degree magwell cut is designed to support faster reloads. Reinforcing ribs are also part of the design, adding strength with minimal added weight according to the manufacturer. For hunters and field-minded users planning a tailored build, it offers a feature-rich starting point rather than a simple budget receiver.

Why Hunters Choose the American Defense Manufacturing

Ambidextrous Stripped

AR-15 lower receiver from American

Machined Radii

Radii and chamfer cuts for

20-degree Magwell

Cut is designed to speed

Reinforcing Ribs

Add strength to the magwell

Claims 40

Percent stronger than standard mil-spec

Key Features

  • Stripped AR-15 lower receiver from American Defense Manufacturing
  • Ambidextrous UIC lower receiver design
  • Machined with radii and chamfer cuts
  • 20-degree magwell cut for faster reloads
  • Reinforcing ribs for added strength
  • Designed as a 5.56mm AR-15 lower receiver

Best Used For

  • Builders seeking a stripped AR-15 lower with ambidextrous controls and enhanced receiver features
  • Users who want faster reloads from a 20-degree magwell cut during range or training use
  • Shooters planning a custom 5.56mm AR-15 build around an American Defense Manufacturing lower
  • Hunters and outdoorsmen assembling a premium lower receiver with reinforced design details

Pros

  • Ambidextrous stripped AR-15 lower receiver from American Defense Manufacturing
  • Machined with radii and chamfer cuts for a refined receiver profile
  • 20-degree magwell cut is designed to speed up reloads
  • Reinforcing ribs add strength to the magwell area
  • Claims 40 percent stronger than standard mil-spec lowers
  • Only half an ounce of added weight according to the description

Considerations & Trade-offs

  • This is a stripped lower receiver, so it is only one component of a complete AR-15 build and requires additional parts before use.
  • Its enhanced feature set and machining details place it above a basic mil-spec lower, which may be more than needed for a straightforward build.
  • The ambidextrous design and 20-degree magwell cut add functionality, but they also make this a more specialized choice than a standard stripped lower.

Suggested Comparisons

  • AR-15 stripped lower receiver
  • Ambidextrous lower receiver
  • Complete lower receiver
  • AR-15 lower parts kit

Suggested Accessories

  • Lower receiver parts kit
  • Upper receiver assembly
  • Magazine
  • Armorer's tool

Frequently Asked Questions

What is included with the ADM UIC stripped lower receiver?

The product is a stripped AR-15 lower receiver. The provided description does not list any additional included parts or accessories.

Is this lower receiver ambidextrous?

Yes. The product title identifies it as an ambidextrous AR-15 UIC stripped lower receiver.

What caliber or platform is this lower receiver intended for?

The title identifies it as an AR-15 UIC stripped lower receiver for 5.56mm.

What design features are mentioned in the description?

The description says the receiver is machined with radii and chamfer cuts, and it features a 20-degree magwell cut plus reinforcing ribs.

Does the description provide exact material, dimensions, or compatibility details?

No. The provided data does not specify material, exact dimensions, or broader compatibility details beyond the AR-15 and 5.56mm references in the title.