The CMMG LPK 556 BLK is a complete lower parts kit for building or refurbishing an AR-15 platform rifle.
- Part Type: Complete Lower Parts Kit
- Compatible Firearms: AR-15, Mil-Spec Lower Receivers
- Material: Steel Components
- Finish: Black
- Installation: Drop-In (Basic Tools Required)
- Includes: Trigger Group, Hammer, Safety Selector, Magazine Catch, Bolt Catch, Springs, Detents, Pins
