Commonly Purchased with Receiver Extension and Stock Kit, Carbine, AR15
Lower Parts Kit, AR15
Starting at
$69.95
Spring, Disconnect, AR15
Starting at
$1.49
Parts Kit, AR15, HD Pivot and Takedown Pins
Starting at
$19.95
Parts Kit, AR15, Lower Pins and Springs
Starting at
$14.95
Parts Kit, AR15, Enhanced Field Repair
Starting at
$39.95
Buffer Assembly, H3
Starting at
$49.95
ZEROED Lower Parts Kit, AR15
Starting at
$124.95
ZEROED Lower Parts Kit, Mk3
Starting at
$134.95
ZEROED Enhanced Lower Parts Kit, AR15
Starting at
$249.95
Receiver Extension and Stock Kit, Carbine, AR15
The CMMG® AR15 Carbine Receiver Extension and M4 Stock Kit has all the essentials for your next AR lower build. The M4 buttstock is a proven lightweight design that is extremely durable. Combine this kit with your choice of Lower Parts Kit to complete your lower group.
All CMMG products are backed by our Lifetime Quality Guarantee.
Kit Includes:
- 6-position M4 Buttstock Assembly
- CMMG 6-position mil-spec Receiver Extension (Buffer Tube)
- Buffer Tube Castle Nut
- Receiver Endplate
- Carbine Buffer
- Carbine Action Spring
Specifications
| Buffer Type | Carbine |
| Receiver Extension | CMMG 6 Position Extension |
| Stock / Brace | M4 |