Cmmg Receiver Extension Kit, Cmmg 55ca6c7 Receiver Ext Kit Ar15

This cmmg receiver extension kit comes with a carbine buffer assembly and a carbine action spring.

Rails: None
Type: Receiver Extension Kit
Firearm Type: AR-Platform
Firearm Model: AR-15
Material: Aluminum/Steel/Polymer
Finish: Black
Adjustment Type: Collapsible
Positions: 6
Tube Included: Yes