CMMG Zeroed Lower Parts Kit – AR-15, Black

The CMMG Zeroed Lower Parts Kit provides the components needed to finish an AR-15/Mk4 lower receiver. Parts are packaged in color-coded packets to simplify assembly and all installation hardware is included. Components meet or exceed mil-spec standards and are produced in the United States.

Key Specifications

• Manufacturer: CMMG.
• Model: Zeroed Lower Parts Kit.
• Fits: AR-platform / Mk4 lower receivers.
• Finish: Black matte.
• Kit type: Lower parts kit (LPK).
• Contents include: color-coded packets with bolt catch, trigger group, ambidextrous safety, magazine catch, pivot/takedown pins, pistol grip, buffer retainer, springs, pins, and installation hardware.
• Standards: Meets or exceeds mil-spec.
• Origin: Made in the USA.
• Package dimensions: 1.60 x 7.20 x 8.25 inches.
• Shipping restriction: No direct ship to California.

This lower parts kit streamlines assembly for builders who value organized workflow and proven, mil-spec components. With color-coded packets and complete hardware included, it simplifies finishing an AR-15 or Mk4 lower while delivering dependable, serviceable parts for maintenance or new builds.