This CMMG Mk3 gunbuilder’s lower parts kit supplies the core components needed to assemble a Mil-Spec lower receiver for .308 / 7.62 NATO platforms. The kit contains the majority of standard lower-group parts while omitting commonly upgraded items. It is designed for use with CMMG Mk3 lowers and is compatible with most LR308-type receivers where Mil-Spec interfaces are used.
Key Specifications
- Compatible caliber is .308 / 7.62 NATO.
- Intended receiver compatibility: CMMG Mk3 and most LR308-type lowers.
- Finish is specified as Black matte.
- Material composition is listed as Various.
- Contents: includes most lower group components but excludes fire control group and pistol grip.
- Product type is classified as a Parts Kit.
- Dimensions are listed as 0.90 x 3.95 x 7.50 inches.
- Listed model designation: Lower Parts Kit (Mk3).
- Specification standard: parts meet or exceed mil-spec.
This kit provides a practical foundation for a custom build or parts replacement where Mil-Spec compatibility is required. Its focused contents make it a straightforward choice for assemblers who plan to install upgraded fire control components or ergonomic grips separately.
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.
