Skip to main content.
0 Item In Your Cart
Qty. Item Price
Cart Total $0.00

Continue Shopping

Receiver Extension and Stock Kit, Carbine, Mk3

PRODUCT #38CA953

See Full Specifications
$129.95
Free Shipping over $150.00

Product Restrictions

Some states and localities have suppressor purchase and/or possession regulations. Review  NFA Product Restrictions prior to ordering.

To avoid delays, verify your local FFL can transfer NFA items before ordering.  Find a Dealer Any additional fees, delays, or requirements must be handled directly between you and your transferring FFL.


Processing Time
Please allow 15-30 days to process and ship your order.

WARNING: Cancer and Reproductive Harm | https://www.p65warnings.ca.gov/

To create a Wishlist you need to have a store account and be authenticated through the store.

Receiver Extension and Stock Kit, Carbine, Mk3

The CMMG® Mk3 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
  • CMMG 6-position mil-spec Receiver Extension (Buffer Tube)
  • Buffer Tube Castle Nut
  • Receiver Endplate
  • .308 Carbine Buffer
  • .308 Carbine Action Spring

Specifications

Platform Mk3
Buffer Type .308 Carbine
Receiver Extension CMMG 6 Position Extension
Stock / Brace M4

Reviews