This CMMG MK3 Lower Parts Kit supplies the components needed to assemble a complete MK3 lower receiver for AR-10/.308 style builds. The kit is organized into color-coded bags and includes fire control parts, springs, pins, a pistol grip, hammer and trigger. Parts are finished in black matte and meet CMMG’s stated mil-spec standards.
Key Specifications
- The kit is specified for .308 / 7.62 NATO compatibility.
- Designed to fit MK3 lowers.
- The finish is listed as Black matte.
- The kit includes pistol grip, hammer, trigger, and fire control components.
- Parts are supplied in color-coded bags for organized assembly.
- Compatible with CMMG Mk3 lowers and most LR-308 type lowers, per manufacturer notes.
- All parts are stated to meet or exceed mil-spec standards.
- Includes hardware such as pins, detents, springs, magazine catch and selector components.
- Packaged dimensions are 1.80 x 4.85 x 10.70 inches as provided in product data.
- Intended for the AR-10 form factor.
The CMMG MK3 Lower Parts Kit is a practical option for builders assembling a Mk3 lower or servicing an AR-10/.308 style receiver. Its organized packaging and comprehensive parts list streamline the lower assembly process while providing mil-spec components in a black matte finish.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
