FMK AR15 Polymer Lower Receiver AR-1 — Burnt Bronze

Description

This FMK Firearms AR-1 is a stripped lower receiver designed for AR-15 platform projects. It is manufactured in the USA from a high-impact proprietary composite polymer that balances strength, durability, and reduced weight. The AR-1 is intended to serve as the structural foundation of a custom build or upgrade and is finished in a matte burnt bronze color. The product includes a lifetime warranty from the manufacturer.

Key Specifications

• Compatible with .223 REM/5.56 NATO caliber platforms.
• The color is Burnt Bronze.
• The finish is Matte.
• Model is AR-1.
• Product type is a Stripped Lower Receiver.
• Construction uses a high-impact proprietary composite polymer.
• Manufactured in the USA.
• Warranty provided: Lifetime warranty.
• Action designation: Semi-Auto.
• Category/subcategory: Lower Receivers.

As a lightweight, durable foundation for AR-15 builds, the FMK AR-1 polymer lower receiver suits builders focused on reliable performance and long-term value. Its composite construction and manufacturer warranty make it a practical choice for custom assemblies used in range, sport, and general shooting applications.