The Radical Firearms AR-15 stripped lower receiver is a mil-spec forged lower made to start a custom rifle or pistol build (Radical Firearms part no. RF00966). Radical Firearms, a Texas manufacturer, forges it from 7075-T6 aluminum and finishes it with Type III Class 2 hardcoat anodizing for corrosion resistance and surface hardness. Because it ships stripped, the builder chooses the trigger group, controls, grip and stock assembly. Mil-spec dimensions keep it compatible with standard AR-15 upper receivers and lower parts kits. It is a dependable, budget-friendly foundation for a first build or a replacement project.

Key Specifications

• Construction is 7075-T6 forged aluminum, which offers more structural strength than cast alternatives.
• Dimensions are mil-spec, so standard AR-15 uppers and lower parts kits fit as expected.
• The finish is Type III Class 2 hardcoat anodizing, adding corrosion resistance and surface hardness.
• It comes stripped, with no trigger group, controls, grip or stock installed.
• The receiver is stamped with Radical Firearms markings.
• It suits both rifle and pistol AR-15 builds, depending on the parts you add.
• The platform is the AR-15, the most widely supported modular rifle design for parts and accessories.
• It is built for a semi-automatic AR-15 configuration.
• The lower is precision machined after forging, supporting consistent fitment and component alignment.

Frequently Asked Questions

What is included with this lower? Only the forged, anodized lower receiver. It is stripped, so the lower parts kit, buffer tube and stock or brace, and grip are chosen and installed by the builder.

Will it work with my upper? Radical Firearms builds it to mil-spec dimensions for compatibility with standard AR-15 upper receivers and parts kits.

Buy the Radical Firearms Mil-Spec Forged AR-15 Stripped Lower Receiver

A forged 7075-T6 lower with a proper hardcoat finish is the right base for a build you plan to keep. Pick up parts from our AR-15 lowers section, and order from our Lubbock, Texas gun shop for insured shipping to your FFL.