| Buffer Type | Carbine |
| Receiver Extension | CMMG 6 Position Extension |
AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.
Receiver Extension Kit, Carbine, AR15
CMMG 6-Position adjustable Mil-Spec Receiver Extension (Buffer Tube) kit includes everything needed to complete your AR’s buffer system. Just add the mil-spec diameter carbine stock or brace of your choice. Made from aluminum with a matte black hard coat anodized finish.
Includes:
- Carbine Buffer Tube
- Receiver End Plate
- Castle Nut
- Action Spring
- Buffer