This CMMG stock kit supplies the components needed to complete the lower group of an MK3 .308 rifle. It bundles a CMMG A1 receiver extension, a .308 rifle buffer assembly, a .308 rifle action spring, and an A1 rifle-length butt stock assembly. The kit is finished in black matte and combines polymer and aluminum components for a balance of durability and weight savings. It is intended for users assembling or servicing MK3 .308 lower receivers for sporting, hunting, or precision applications.
Key Specifications
- Compatible with the MK3 platform in .308.
- Includes a CMMG A1 receiver extension.
- Includes a .308 rifle buffer assembly.
- Includes a .308 rifle action spring.
- Includes an A1 rifle-length butt stock assembly.
- Finish described as BLACK MATTE.
- Material described as POLYMER/ALUMINUM.
- Dimensions listed as 2.00 X 7.00 X 16.70 (units not specified by source).
- Weight listed as 1.456 (units not specified by source).
This kit provides a straightforward route to completing an MK3 .308 lower group with components matched for that platform. The A1-length stock and matched receiver extension simplify assembly while the included buffer and spring are specified for .308 service. For builders and technicians who value correct-fit parts and a clean, black matte finish, this kit gathers the necessary lower-end components into a single package.
