User Ratings
No ratings yet
Be the first to review this product
Complete your AR-15 lower build with this carbine receiver extension kit. Includes CMMG 6 position carbine buffer tube, CMMG carbine action spring, CMMG carbine buffer, castle nut, and end plate. Matte Black finish. Lifetime warranty from CMMG.
Specifications
- Manufacturer:
- Cmmg
- Category:
- Buffer Tube
- MPN:
- 55CA6C7
- Required Component:
- Yes
Sponsored
Wheeler Tools
Build it right with the right tools
Armorer's kits, scope mounting tools, torque wrenches, and trigger gauges for serious builders.
Shop ToolsWhere to Buy
Have one to sell?
Price History
Current
$74.99
Lowest
$74.99
Highest
$74.99
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertWhat's Included in this Bundle
Related Guides
Guide
AR-15 Components: A Complete Reference Guide
A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
12 min read
Guide
The AR-15 Buffer System Explained
A neutral overview of AR-15 buffer systems, covering carbine vs. rifle receiver extensions, buffer weights, springs, and how these parts affect cycling and recoil.
5 min read