This CMMG Receiver Extension and Stock Kit A1 Mk3 supplies the receiver extension, buffer assembly, action spring and a fixed A1 rifle-length buttstock for MK3 .308 lower builds. It is intended to be combined with a compatible lower parts kit to complete a .308 lower group. The kit is finished in black matte and uses polymer and aluminum components where specified.
Key Specifications
- The kit includes a CMMG A1 receiver extension for MK3 .308 lowers.
- The package contains a .308 rifle buffer assembly.
- The kit provides a .308 rifle action spring for proper cycling.
- The stock supplied is a fixed A1 rifle-length buttstock assembly.
- The finish is listed as BLACK MATTE.
- Material construction is specified as POLYMER/ALUMINUM.
- Product type is indicated as RECEIVER EXTENSION/STOCK.
- Overall dimensions are listed as 2.00 X 7.00 X 16.70 (inches as provided).
- The kit is identified for use with MK3 .308 platforms.
This kit supplies core components needed to complete a compatible .308 lower group when paired with a lower parts kit. Its fixed A1 stock and rifle-dimension buffer assembly offer a traditional rifle-length setup appropriate for MK3 .308 configurations.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
