FMK AR-1 Polymer Lower Receiver FDE

The FMK AR-1 polymer lower receiver is a stripped AR-15 lower finished in Flat Dark Earth for a coordinated build. Manufactured in the USA from a high-impact proprietary composite polymer, it provides a lightweight foundation for AR-15 projects. The Ar1 eXtreme polymer design is presented by the manufacturer as a durable option and the product includes a lifetime warranty.

Key Specifications

• The brand is FMK Firearms.
• The model is AR-1.
• The product type is a Stripped Lower Receiver for AR-15 platforms.
• The color is Flat Dark Earth.
• The caliber designation is .223 REM/5.56 NATO.
• The action type is listed as Semi-Auto.
• The finish is Matte.
• The construction material is a high-impact proprietary composite polymer as specified by the manufacturer.
• The unit is manufactured in the USA.
• The product is offered with a lifetime warranty according to the manufacturer.

Designed as a lightweight, durable foundation for an AR-15 build, this FMK AR-1 stripped lower receiver delivers the basic platform components without added extras. Its polymer construction and FDE finish make it suitable for builders seeking a low-weight, corrosion-resistant lower that aligns with modern AR-15 configurations.