by Cmmg
No ratings yet
Be the first to review this product
This CMMG AR-15 Carbine Receiver Extension Kit is designed to provide all the core parts needed to complete your carbine-length buffer system. Constructed from aluminum with a durable hard coat anodized finish, the kit offers a 6-position adjustable receiver extension, compatible with most AR-15 carbine platform builds. Includes buffer tube, buffer, action spring, receiver end plate, and castle nut.
Sponsored
Right to Bear
Legal protection if you ever use your firearm
No recoupment clause. Real attorney on the hotline. All 50 states, all means of self-defense.
Get CoverageHave one to sell?
Current
$58.99
Lowest
$51.99
Highest
$92.99
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertGuide
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
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